From wrob@unixg.ubc.ca Mon Oct 10 01:50:14 PDT 1994
Article: 30012 of news.answers
Path: unixg.ubc.ca!unixg.ubc.ca!wrob
From: wrob@unixg.ubc.ca (Robert Wong)
Newsgroups: comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers
Subject: ZyXEL modem FAQ List v4.0, Oct 9 1994, Part 1 of 5 [Introduction]
Supersedes: <32sgbe$slm@nnrp.ucs.ubc.ca>
Followup-To: comp.dcom.modems
Date: 10 Oct 1994 08:33:49 GMT
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 339
Sender: wrob@unixg.ubc.ca
Approved: news-answers-request@MIT.Edu
Distribution: World
Expires: Fri, 21 October 1994 00:00:00 GMT
Message-ID: <37au9d$jlc@nnrp.ucs.ubc.ca>
NNTP-Posting-Host: unixg.ubc.ca
Summary: Contains common questions, and information sources of/about ZyXEL
         modems.  Software that works with, and vendors of ZyXEL modems is 
         also listed.
Keywords: ZyXEL FAQ FTP
Xref: unixg.ubc.ca comp.dcom.modems:65786 comp.dcom.fax:9492 comp.answers:7730 news.answers:30012


Archive-name: modems/ZyXEL/FAQ/part1
Last-modified: 1994/08/15
Version: 4.0
Posting-frequency:  monthly;the third Monday of every month



                             ZyXEL Modems 
                           Frequently Asked
                            Questions List

                              Version 4.0

                    Archived at: rtfm.mit.edu in 
         /pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]
       
           Please mail any additions to: wrob@unixg.ubc.ca


=================
Table of Contents
=================

Q.      Frequently Asked Questions
Q.1     What is the proper pronunciation of "ZyXEL"?
Q.2     What is a "ZyXEL"?
Q.3     What distinguishes ZyXELs from other modems?
Q.4     What is the difference between the "Plus" and the regular models?
Q.5     What features does the U-1496S+ (aka U-1496+) offer?
Q.6     How fast do ZyXELs communicate with other ZyXELs and with other modems?
Q.7     How does one get access to ZyXEL technical support?
Q.8     What are additional methods to contact ZyXEL USA technical support?
Q.9     What are the prices for upgrading a ZyXEL?
Q.10    What is the warranty on a ZyXEL?
Q.11    What features will be in the next generation ZyXEL modems?

T.      Technical Frequently Asked Questions
T.1     What is the latest official ROM release(s)?
T.1A    How does one determine the ROM revision?
T.1B    What does one do if one does not have have the latest ROMs?
T.1C    Where does one obtain EPROMs to update modem ROMs?
T.1Ci   Will Toshiba EPROMs work?
T.1D    What format are the ROM images?
T.1E    What does one do with the latest ROMs?
T.2     In which countries are ZyXEL modems certified to operate?
T.3     What are known country codes?
T.3A    How does one change a country code?
T.4     What kind of power supply is used?
T.5     Are ZyXEL modems Hayes-compatible?
T.6     How do ZyXEL modems deal with escape sequences?
T.7     What is the chip set / data pump used in the modems?
T.7A    What is the advantage of this design?
T.8     What is the meaning of the T401 and T402 timeouts seen in an "AT I2"?
T.9     What is the selective reject in V.42?
T.10    What is the "Capture modem manufacturer information" feature?
T.11    What settings are required to attain the fastest data connection?
T.12    Will V.32terbo be implemented?
T.13    When will V.FAST (V.34) be available?
T.14    Will V.34 fallback speeds be implemented?
T.15    How does one patch GNU NetFax to work properly?
T.16    Why doesn't faxing from WordPerfect work properly?
T.17    Once a fax is received, what does one do?
T.18    How does enabling callback security affect the reception of faxes?
T.19    What is the easiest way to record voice?
T.20    How good is the voice quality?
T.20A   How does the voice quality compare versus the Rockwell chipset?
T.20B   When will better quality speech at higher encoding rates be available?
T.21    Can a voice call be detected by the modem?
T.22    Are the specifications for converting voice files available?
T.23    Can speech be digitized/recorded and played back simultaneously?
T.24    Can DTMF tones be recognized at any time during recording/playback?
T.25    What kind of problems exist with using voice software on Macintoshes?
T.26    Why is there a slight hissing sound from the speaker?
T.27    How does one make Caller ID (CID/CND) work correctly?
T.27A   What exactly is the hardware modification needed for CID/CND and EDR?
T.27B   What software modifications are needed?
T.27C   What if CID/CND and EDR still doesn't work?
T.28    What changes are needed for overseas calling?
T.29    What modifications are needed to S/S+ models to get the eye pattern 
        option?

I.      Information Sources
I.1     FTP servers known to Carry ZyXEL info
I.2     Mail servers known to carry ZyXEL info
I.3     Known mailing lists dealing with ZyXEL modems
I.4     ZyXEL's CELP compression mode for voice

P.      Product Information
P.1     NeXTSTEP software that works with ZyXEL modems
P.2     UNIX software that works with ZyXEL modems
P.3     MacIntosh software that works with ZyXEL modems
P.4     OS/2 software that works with ZyXEL modems
P.5     MS-DOS software that works with ZyXEL modems
P.6     MS-Windows software that works with ZyXEL modems
P.7     Amiga software that works with ZyXEL modems
P.8     Atari ST/TT/Falcon software that works with ZyXEL modems
P.9     ZyXEL modem vendors


--------------------------------------------------------------------------------
Disclaimers
--------------------------------------------------------------------------------

As usual, this FAQ has disclaimers.

The usual disclaimer is:
There are no warranties, either expressed or implied, with respect to the
information in this Frequently Asked Questions List (hereafter called FAQ), 
its quality, performance, merchantability or fitness for any particular 
purpose.  This FAQ is provided "AS IS".  The entire risk as to the quality 
and performance of the information is with the reader.  In no event will
Robert Wong be liable for direct, indirect, incidental, or consequential
damages resulting from any defect in the FAQ even if the reader has been
advised of the possibility of such damages.  Some states do not allow the
exclusion or limitation of implied warranties or liabilities for incidental
or consequential damages, so the above limitation or exclusion may not apply 
to the reader.
 
The above disclaimer was modified from Central Point Software's PC Tools 
software license.  :-)   Apologies to the legal department of Central Point 
Software! :-) :-)
 
On a more serious note:
Some effort has been taken to ensure that the information described in the 
FAQ is accurate.  Errors will periodically crop up in the FAQ.  These errors 
will occur for a variety of reasons:
    1)  The Keeper of the FAQ is just plain wrong.
    2)  The Keeper of the FAQ paraphrased a submission incorrectly.
    3)  The submission itself was incorrect.
    4)  Some other reason not described in 1) to 3).

As the Keeper of the FAQ, I would like to apologize for any errors that occur 
in the FAQ.

ZyXEL USA has been very gracious in support of the FAQ.  They have been a 
wellspring of information, help, and more help.  ZyXEL USA has played a large 
role in submitting information for the FAQ.  They are not affilitated with the 
FAQ in any other manner, financial or otherwise.

Final disclaimer:
As well as being the Keeper of the FAQ, I am also an authorized ZyGold 
ZyXEL modem reseller and a NXFax software reseller.  Efforts have been made
to prevent the FAQ from unfairly emphasizing any modem reseller, software
platform, software product, etc.


--------------------------------------------------------------------------------
What is the ZyXEL FAQ?
--------------------------------------------------------------------------------

The ZyXEL FAQ is a source of information about ZyXEL modems.  It contains a 
list of Frequently Asked Questions (and answers) that are most commonly asked 
by people.

Since the FAQ is too large to be a single file, it is broken into five (5) 
logical parts.  Below is the name, and purpose of each part:

ZyXEL FAQ-Introduction
    This part serves as the introduction to the rest of the FAQ.
ZyXEL FAQ-Frequently Asked Questions
    Common questions of a less technical nature are answered.
ZyXEL FAQ-Technical Frequently Asked Questions
    Containing questions of a more technical nature, this section is 
    organized into various subsections
    . ROMs, & ROM images
    . modem certifications, country codes, & power supplies
    . data modem questions
    . fax modem questions
    . voice questions
    . other questions
ZyXEL FAQ-Information Sources
    This section serves as a pointer to other resources of ZyXEL modem 
    and ZyXEL-modem related information. FTP sites, mail servers, mailing 
    lists, and CELP references are listed.
ZyXEL FAQ-Product Information
    Various software products on different platforms are listed.  ZyXEL 
    modem vendors are also listed.


--------------------------------------------------------------------------------
Where to get the ZyXEL FAQ
--------------------------------------------------------------------------------

The ZyXEL modem FAQ (Frequently Asked Questions) list can be obtained in a 
variety of ways:

Internet:
1) Anonymous FTP to rtfm.mit.edu and get the file in 
   /pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]

2) The complete FAQ is also posted in the comp.answers, and news.answers
   newgroups.  Part 1 of the FAQ is posted in the comp.dcom.modems,
   comp.dcom.fax, comp.answers, and news.answers newsgroups.
   
3) E-mail Robert Wong (wrob@unixg.ubc.ca) and request a copy to be e-mailed
   to you.  The FAQ is about 164 kbytes (uncompressed) or 97 kbytes 
   (compressed and uuencoded) in size.  To save on transmission costs, 
   the FAQ is usually sent as a compressed/uuencoded message.
   
   UUCP recipients should ensure that sufficient hard disk space exists on
   both UUCP host machines, and the final recipient.  Also, UUCP recipients
   should be aware that the sheer size of the FAQ might violate some 
   transmission/hard disk/etc. quotas that might be imposed by the UUCP
   administrator.
   
4) E-mail Robert Wong (wrob@unixg.ubc.ca) and request to be put on the FAQ
   distribution list.  You will automatically receive the FAQ in compressed, 
   uuencoded format (faq.Z.uue) when it is posted.  Please ensure that you
   have the ability to receive a 97+ kbyte e-mail message and you can 
   uudecode/uncompress the FAQ.
   
 
Fidonet:
1) Jussi Torhonen (hhsjto@hhomail.hhofi1.msgw.kone.com), 2:220/405 [FidoNet]
   reposts the FAQ from a BBS in Finland.  It is posted to the "ZyXEL modems"
   echo conference.  All you have to do is to collect all the pieces of the
   FAQ (30+ parts) and you have the complete file.
                  
2) Frog Hollow BBS (604) 469-0264 (1:153/290) has the FAQ in a file area.
   a) File REQuests (FREQs) are possible from this BBS at anytime except ZMH.
      Use the magic name of ZYXELFAQ. OR:
   b) Download the file after you have signed onto the BBS.
   
ZyXELnet:
1) The FAQ is emailled to Thomas Haukap (thaukap@zerebrm.hanse.de).  He then
   zips the file and sends the file to Horst Hackenbruch, who hatches it
   immediately into the ZyXELnet "ZYXTEXT" file area.


--------------------------------------------------------------------------------
How to send a submission
--------------------------------------------------------------------------------

All submissions are gratefully welcomed.  

Contributions may be slightly paraphrased in order to clarify and/or better 
establish the context of the submission.  Any misunderstanding due to this 
paraphrasing in entirely due to the Keeper of the FAQ.

Below is a list of possible submission methods in order of most preferable to
least preferable:

1) Internet e-mail to Robert Wong (wrob@unixg.ubc.ca).  
   All e-mail submissions received via the Internet will be acknowledged by a 
   reply.  Some acknowledgements may take a while, depending on the complexity 
   of the submission.  [Enrico Scotoni:  I could not send ack, because my 
   machine can't understand your e-mail address of
   "@imp.ch,@gccs.fido.imp.com:Enrico.Scotoni@gccs".]

2) FidoNet e-mail to Robert Wong Jr. (1:153/290)
   This BBS is called Frog Hollow BBS and is in Port Moody, BC, CANADA.

3) Regular postal mail to Robert Wong Jr., 1921 East 61st Avenue, Vancouver, 
   B.C., CANADA, V5P 2K2.

4) Voice at (604) 322-6918 (H).
   There should either be a live person at this number, or a functional
   answering machine.  Ask for Robert Jr.

5) Any other method not listed above.  Yelling across a busy street may be
   acceptable.  Carrier pigeon however, is not an acceptable method. :-)


--------------------------------------------------------------------------------
The format of a submission
--------------------------------------------------------------------------------

Submission of information should hopefully be in a readable form of English. 
:-)  It should also be understood by a non-programmer (me!).

Upon request, your company affilitation will be included.  Thus every
time your e-mail address is mentioned, your company affilitation will also
be mentioned.  (eg.  Joe NeXT (jn@JoePizza.com) [Pizza Products Inc.])

For the submission of product info, the format shown below would be much
appreciated:

ProductName v.version number, software type
  Short description of product.  3-5 lines.
Address of company
Postal Code
Time    time zone
Voice:  (xxx)yyy-zzzz
Fax:    (xxx)yyy-zzzz
BBS:    (xxx)yyy-zzzz
E-mail: Joe NeXT (jn@JoePizza.com)
Cost:   $ and currency type


Basically, the Keeper of the ZyXEL FAQ is lazy!  A submission of product info,
and/or modem vendor info would ideally be a matter of cut'n paste into the
FAQ.


***begin soapbox/comments/questions/requests/hot news/misc***
This is my first crack at doing a FAQ.  Please be patient.  Any errors,
either in technical content or English usage (Gasp!) are entirely mine.
Please e-mail me any corrections.

Hint of the month:  Check out the ftp site called ftp.zyxel.com (aka
ftp.sdsc.edu).  It has the ZyXEL Quick Ref. card for the v6.13 ROMs, Class
2, Class 2.0 info, etc.

Proof-readers for the ZyXEL FAQ needed!  If you can receive large internet 
e-mail messages, and uudecode/uncompress (.Z.uue) files, send me e-mail!
Advance copies of the FAQ will be sent out for editing/correcting/flaming,
etc.  Warning:  This task comes with no pay/renumeration.  :-)

Internet users will note that the complete FAQ will be posted to ALL
the approved (comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers)
newgroups.  Last month, just Part 1 was posted to all groups  -- there
was hell to pay for that action!
       
When the next generation of ZyXELs shipped, a whole new set of questions
(and hopefully answers) will be added.

Apologies for the delay in shipping this FAQ.  I hope the next version
isn't as late.  :-)

Many thanks to all the submitters and ZyXEL USA for supporting this FAQ.

A special hello is given to Jussi Torhonen in Scandinavia.  He was kind 
enough (and persevering enough) to repost the FAQ to Fidonet in more than
30+ pieces.
***end soapbox/comments/questions/requests***
================================================================================
--
Robert Wong Jr.
1921 East 61st Avenue, Vancouver, B.C., Canada, V5P 2K2, (604) 322-6918
wrob@unixg.ubc.ca
Keeper of the ZyXEL FAQ and Head of the UBC-NeXT Users Group
Standard disclaimers apply.

-- 
Robert W. Wong Jr.                     wrob@unixg.ubc.ca (ASCII only)
Crasher of Automated Banking Machines, Keeper of the ZyXEL modem FAQ,
University of British Columbia NeXT Users Group Leader and 
collector of titles.


From wrob@unixg.ubc.ca Mon Oct 10 01:50:25 PDT 1994
Article: 30013 of news.answers
Path: unixg.ubc.ca!unixg.ubc.ca!wrob
From: wrob@unixg.ubc.ca (Robert Wong)
Newsgroups: comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers
Subject: ZyXEL modem FAQ List v4.0, Oct 9 1994, Part 2 of 5 [FAQ]
Supersedes: <32sghc$sm3@nnrp.ucs.ubc.ca>
Followup-To: comp.dcom.modems
Date: 10 Oct 1994 08:38:17 GMT
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 527
Sender: wrob@unixg.ubc.ca
Approved: news-answers-request@MIT.Edu
Distribution: World
Expires: Fri, 21 October 1994 00:00:00 GMT
Message-ID: <37auhp$jm2@nnrp.ucs.ubc.ca>
NNTP-Posting-Host: unixg.ubc.ca
Summary: Contains common questions often asked of/about ZyXEL modems.
Keywords: ZyXEL FAQ FTP
Xref: unixg.ubc.ca comp.dcom.modems:65788 comp.dcom.fax:9493 comp.answers:7731 news.answers:30013


Archive-name: modems/ZyXEL/FAQ/part2
Last-modified: 1994/08/15
Version: 4.0
Posting-frequency:  monthly;the third Monday of every month



                             ZyXEL Modems 
                           Frequently Asked
                            Questions List

                              Version 4.0

                    Archived at: rtfm.mit.edu in 
         /pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]
       
           Please mail any additions to: wrob@unixg.ubc.ca



=================
Table of Contents
=================

Q.      Frequently Asked Questions
Q.1     What is the proper pronunciation of "ZyXEL"?
Q.2     What is a "ZyXEL"?
Q.3     What distinguishes ZyXELs from other modems?
Q.4     What is the difference between the "Plus" and the regular models?
Q.5     What features does the U-1496S+ (aka U-1496+) offer?
Q.6     How fast do ZyXELs communicate with other ZyXELs and with other modems?
Q.7     How does one get access to ZyXEL technical support?
Q.8     What are additional methods to contact ZyXEL USA technical support?
Q.9     What are the prices for upgrading a ZyXEL?
Q.10    What is the warranty on a ZyXEL?
Q.11    What features will be in the next generation ZyXEL modems?



================================================================================
Subject:  Q.  Frequently Asked Questions
================================================================================

Subject:  Q.1  What is the proper pronunciation of "ZyXEL"?
--------------------------------------------------------------------------------

The proper pronunciation of "ZyXEL" is apparently "Zai-sell".  Note the "Zai"
rhymes with "buy".

 
--------------------------------------------------------------------------------
Subject:  Q.2  What is a "ZyXEL"?
--------------------------------------------------------------------------------

ZyXEL is the name of a modem manufacturer.  Thus a "ZyXEL" is a brand of 
modem.  They manufacture a series of fast, feature-packed faxmodems that 
operate on multiple platforms.  The following chart will serve to quickly 
explain the product line:

Model           Type                    Display                 Data Speed
-----           ----                    -------                 ----------

U-1496B         Internal (PC bus)       none                    16.8 ZyX
U-1496B+        Internal (PC bus)       none                    19.2/16.8 ZyX

U-1496E         External                12 LED lights           16.8 ZyX
U-1496E+        External                12 LED lights           19.2/16.8 ZyX

U-1496          External                20 x 2 LCD display &    16.8 ZyX &
aka U-1496S                              6 LED lights           Leased Line

U-1496+         External                20 x 2 LCD display &    19.2/16.8 ZyX &
aka U-1496S+                             6 LED lights           Leased Line

U-1496R         Rackmount               15 LED lights           19.2/16.8 ZyX

U-1496RN        Rackmount               15 LED lights           19.2/16.8ZyX &
                                                                Leased Line

U-1496P         Portable                1 LED light             16.8ZyX/14.4Cell

ZyCellular      Avail. on all           N/A                     Cell 14.4
Option          models


Notes:  1) The U-1496, aka the U-1496S is no longer manufactured.
        2) Aside from nomenclature, the U-1496 is *exactly* the same as the 
           U-1496S; the U-1496+ is *exactly* the same as the U-1496S+.
        3) U-1496S/S+ models with ROMs v6.00 ROMs or newer can have a
           display screen that shows the lights that are on the E but not 
           the S.  Each "light" is depicted with a rectangular box and a
           corresponding short label.
        4) Rackmount modems require in addition, a RS-1600 Rack Mount System 
           and Network Management Software (NMS).
           
For further information about ZyXEL modems, contact your local authorized 
reseller, or mail server (c.f. I.2).


--------------------------------------------------------------------------------
Subject:  Q.3  What distinguishes ZyXELs from other modems?
--------------------------------------------------------------------------------

***** WARNING:  Market-speak, Sales pitch *****

ZyXEL makes good, fast, and reliable modems.  Instead of using generic 
chipsets to produce modems, ZyXEL uses Texas Instrument Digital Signal
Processors (DSPs) in their modems.  This design allows new features and
bug fixes to be implemented in a simple manner.

It has a whole plethora of features:
        . ZyX 16.8, ZyX 19.2 kbps(on Plus models) data transmission speeds
        . V.32 (9.6 kbps), V.32bis (14.4 kbps) data transmission speeds
        . V.17 (14.4 kbps) fax transmission speeds
        . Automatic speed fall-back and fall-forward
        . V.42bis data compression
        . sending and receiving fascimiles
        . voice recording and playback
        . CallerID support
        . Distinctive Ring and Extended Distinctive Ring support
        . Remote configuration
        . Call-back security
        . etc, etc, etc.

***** End Warning *****

Reality:  ZyXEL makes a very good modem.  Bugs are fixed in a prompt manner.
Features are also added in a regular basis.

There are some deficiencies in the product.
        . The documentation is too technical at times, as well it has some
          English errors.  Currently it is being re-written in the form of
          both a user and a technical reference manual.  The new manual will
          hopefully solve this shortcoming.
        . Bugs!  (At least they are acknowledged!)


--------------------------------------------------------------------------------
Subject:  Q.4  What is the difference between the "Plus" and the regular models?
--------------------------------------------------------------------------------

Paraphrased and modified from the page 1-1 of the ZyXEL User's Manual 
(Revision 2.1).  [page 1-1 in the on-line version]:

The U-1496 "Plus" models have a faster processor and more memory.  This 
allows the "Plus" models to have:
. more advanced voice capability (CELP voice encoding)
. faster speeds ZyXEL specific 19.2 kpbs (between two "Plus" modems)
. external "Plus" models support a 76.8kbps DTE rate (recent external
  non-"Plus" modems apparently also support the higher 76.8kbps DTE rate)

The basic feature, function, and operation of the "Plus" versions are the
same as the normal non-"Plus" versions.

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] explains that in the future,
the Plus models will have 2 Mbit ROMs to allow room for "future enhancements".


--------------------------------------------------------------------------------
Subject:  Q.5  What features does the U-1496S+ (aka U-1496+) offer?
--------------------------------------------------------------------------------

The U-1496S+ (aka U-1496+) is ZyXEL's flagship modem.  It is an external modem
with a display consisting of six (6) LED lights and a two (2) line by twenty 
(20) character backlit LCD display.

In addition to the usual features found in U-1496 "Plus" models (advanced CELP
voice capability, ZyXEL-specific 19.2 kbps speed and 76.8kbps DTE rate) the
U-1496S+ has the following features:
. two (2) or four (4) wire leased line capability
. V.33, V.29, V.27ter protocols
. dial backup capability (calls backup phone number when leased line is 
  unavailable.)
. on-line conditioning monitoring [LCD display shows link option (eg., 
  V.32bis), line speed, error control, data compression, line type (eg., 
  dial-up), data format (eg., asynchronous), instant transmission throughput,
  signal to noise ratio, receiving signal level, phase jitter in received 
  signal, frequency offset, retrains granted, retrains requested, round trip 
  echo delay and carrier loss counts.]
. capability to view the above parameters and the capability to change modem 
  settings via four (4) arrow keys on the front panel.


--------------------------------------------------------------------------------
Subject:  Q.6  How fast do ZyXELs communicate with other ZyXELs and other 
               modems?
--------------------------------------------------------------------------------

Between two ZyXELs:

ZyXEL modems will communicate with each other at the highest speed that is 
common to both modems.  This means that the "Plus" (U-1496 B+/E+/S+) and 
rackmount models will communicate with each other at the ZyXEL-specific speed 
of 19.2 kbps.  Non-"Plus" models communicate with each other and with "Plus"/
rackmounts at the ZyXEL-specific speed of 16.8 kbps.  Note that both the
19.2 and the 16.8 kbps speeds are full duplex protocols.

The ZyCellular option is available on ALL ZyXEL modems, and is now capable 
of 14.4 connects using the ZyXEL-specific CELL 14.4 protocol.  Again, both
modems must have the ZyCellular option in order to use the CELL 14.4 protocol.


Between a ZyXEL and a non-ZyXEL modem:

The fastest speed that ZyXEL modems will communicate with non-ZyXEL modems 
is at 14.4 kbps (V.32bis).

The fastest speed that ZyXEL modems will communicate with V.32terbo modems is
at 14.4 kbps (V.32bis).  V.32terbo modems do run at 19.2 kpbs.  The modulation
scheme of V.32terbo modems are separate and distinctly different from the 
ZyXEL 19.2 kbps implementation.  Thus V.32terbo modems are *NOT* compatible
with ZyXEL modems at either the ZyXEL-specific speeds of 16.8 kbps or 19.2
kbps.  (Brent Mosbrook (brentm@zyxel.com) of ZyXEL USA explained that a 
different bit mapping scheme was used in each modem.)

The fastest speed that ZyXEL modems will communicate with USR HST/VHST modems 
is at 2400 baud.  ZyXELs will communicate with a USR Dual Standard (DS) modem 
at 14.4 kbps (V.32bis).

The fastest speed that ZyXEL modems will communicate with V.FC (V.Fast Class)
modems is at 14.4 kbps (V.32bis).


--------------------------------------------------------------------------------
Subject:  Q.7  How does one get access to ZyXEL technical support?
--------------------------------------------------------------------------------

ZyXEL, Taiwan
        Voice: 886-35-783942
        Fax:   886-35-782439
        BBS:   886-35-787045

TCL Technology Ltd, Hong Kong
        302 Iuki Tower
        5 O'Brien Road
        Wanchai
        Hong Kong
        Voice:  (852) 891-3281 (Sales)
        Voice:  (852) 891-4327 (Support)
        Fax:    (852) 891-6335
        BBS1:   (852) 834-1659
        BBS2:   (852) 577-7515
        E-Mail: info@tcl.com.hk
        FTP   : ftp.tcl.com.hk  /pub/TCL/ZyXEL

Unitech Computer Systems Limited*
        Unit G, 3/F, Garment Centre,
        576-586 Castle Peak Road,
        Cheung Sha Wan, Kowloon, Hong Kong.
        Tel:    (852) 786 9228
        Fax:    (852) 307 2280
        BBS:    (852) 371 2971
        E-Mail: unitech-enquiry@unitech.com.hk
* There is some question as to whether Unitech is an Authorized Distributor.
At present, ZyXEL Taiwan has neither confirmed, nor denied the status of 
Unitech.

ZyXEL, USA (formerly 0/1 Networking)
        4920 E. La Palma Avenue
        Anaheim, CA 92807
        USA
        Voice: (714) 693-0808 (Sales)
           or: (800) 255-4101 (Works in Canada)
        Voice: (714) 693-0808 (Tech. support)
        FAX:   (714) 693-8811
        BBS:   (714) 693-0762
        E-Mail: sales@zyxel.com
                tech@zyxel.com
                bug-report@zyxel.com

MX ENGINEERING CO.,LTD., Japan
        KOJIMACHI 4-3 BENIYA BLDG.8F
        CHIYODA-KU TOKYO 102
        Voice:  (03)5213-8444
        Fax:    (03)5213-8445
        BBS:    (03)5213-8445

OCOMP Optimizing COMPuters, Canada
        Voice: (416) 534-1508
        E-Mail: George Vande Bunte (gvb@telly.on.ca) of OCOMP


--------------------------------------------------------------------------------
Subject:  Q.8  What are additional methods to contact ZyXEL USA technical
               support?
--------------------------------------------------------------------------------

[This was originally posted by Brent Mosbrook (brentm@zyxel.com) of ZyXEL 
USA technical support.  It was slightly modified by me (wrob@unixg.ubc.ca).]

The following information summarizes the various methods of accessing ZyXEL 
technical support.

BBS       We operate a 4-node BBS, 24 hrs a day.  This provides ZyXEL
          users access to the latest rom binaries, Zfax updates,
          configuration guidelines, and software setup instructions.
          In addition, sysop pricing and order forms are available. 
          You can reach the BBS by dialing 714-693-0762
 
Internet  The site called zyxel.com has been established.  Please use the 
          following email addresses:

          sales@zyxel.com       For information regarding pricing, 
                                availability, literature, upgrades, and sysop
                                deals.  

          tech@zyxel.com        For installation problems, configuration 
                                questions, and general technical information.

          bug-report@zyxel.com  For submission of bug reports (currently used
                                for BETA versions of Zfax 3.0x).


          The comp.dcom.modems and comp.dcom.fax newsgroups are also 
          monitored, and posts/replies to the newsgroups will be made when
          appropriate.  
 
          An anonymous FTP site has also been established at ftp.zyxel.com
          (aka ftp.sdsc.edu).  ZyXEL related files are in the
          /pub/other/zyxel directory.  The latest official roms and software
          here will be posted to this site.  However, the FTP is not intended
          to replace the BBS, which has a much wider array of available files.  

Fidonet   We maintain a node on the network, which is linked to our
          BBS.  You can reach us at: 1:103/725 (1:202/701.101
          secondary address).  Users can netmail technical support
          questions to the above address, and they will be replied to
          by our staff.  We monitor the comm, hs_modems, and ZyXEL
          echos, will post or reply when appropriate.
           
          File REQest any file on our bbs by name (wildcards
          accepted)
 
          OR
  
          "FILE" for files listing
          "FILES" for files listing
          "ROME"  for the latest roms for the E 
          "ROMEP"  "   "    "      "   "   "  E Plus
          "ROMB"   "   "    "      "   "   "  B 
          "ROMBP"  "   "    "      "   "   "  B Plus
          "ROMSP"  "   "    "      "   "   "  S Plus
          "ROMS"   "   "    "      "   "   "  S 
          "ZFAX"   "   "    "    Zfax
 
CompuServe     We are on-line at CIS and can be reached as user
               71333,2734.  We have a forum dedicated to ZyXEL
               (GO ZYXEL), and will respond to any technical
               support related issue in e-mail. Please address
               any sales related to >internet:sales@zyxel.com. 

          
--------------------------------------------------------------------------------
Subject:  Q.9  What are the prices for upgrading a ZyXEL?
--------------------------------------------------------------------------------

Firmware upgrades are available for free via anonymous FTP to sites 
carrying ZyXEL ROM images.  Users, however still need to provide their 
own EPROMs, EPROM burners, EPROM erasers, etc.

ZyXEL USA is offering to upgrade U-1496E models to U-1496E+ models for
US$150 (plus shipping).  Upgrading your U-1496E to a U-1496E+ by this 
method will ensure that your warranty remains valid.

There are reports that a U-1496E can be upgraded by users to a U-1496E+
for substantially less.  This "do-it-yourself" method seems to work.  
It would also void your warranty.

ZyXEL is now designing the next generation of ZyXEL modems.  It is still 
in progress, and the feature set has yet to be frozen.  The new modems will
not be available until AFTER final approval of the V.34 protocol (c.f. Q.11 
for some preliminary details about the new modems.  c.f. T.13 for details of
V.34 ratification.)

ZyXEL USA is offering upgrades from the old modems to the new modems.  The
upgrade method has yet to be determined.  One likely method would involve
ZyXEL mailing a new modem to owners, with the stipulation that the old
modem be returned within a set period.  Regardless of the upgrade method,
the new upgraded modem will then have EXACTLY the same features as a brand
new second generation ZyXEL modem.

ZyXEL USA has announced preliminary pricing for upgrades to the second 
generation ZyXEL modems.  The cost is US$249 + S/H for U-1496E+/B+ models
and US$299 + S/H for U-1496E/B/S/S+ models.  Please note that the prices
listed above reflect the ceiling for the upgrade.  The modem is still being
designed, and until that is completed (as well as finalization of V.34),
exact pricing will not be known.  It is possible (although not promised)
that the price could go down.

Presently, orders are *NOT* being taken for the upgrade a ZyXEL USA.

The offer/pricing mentioned above is valid for modems purchased in Canada,
USA, Mexico and South America only.  Other distributors in other countries
may offer the same or similar deals, but that is up to each distributor.
Contact your local distributor for more information.

All pricing listed above is for non-sysops.  BBS sysops may have a discount.


--------------------------------------------------------------------------------
Subject:  Q.10  What is the warranty on a ZyXEL?
--------------------------------------------------------------------------------

All ZyXELs come with a two year parts and labour warranty.  ZyXEL USA has 
decided to extend the warranty an extra three years.  Thus a ZyXEL USA
modem has a five year parts and labour warranty.

This warranty allows the user to install and change the ROMs on the modem.

Other hardware modifications such as the upgrading of the ROM socket, 
the installation of a capacitor for Caller-ID, and other modifications 
that ZyXEL USA performs MAY keep the warranty intact.  The basic 
philosophy regarding user-modifications seems to be that as long as 
the modification is PROPERLY performed, the warranty will be honoured.
(Burn marks, large holes, etc., would likely void the warranty.)

Specific questions regarding hardware modifications and the effects to 
the warranty should be e-mailed directly to ZyXEL USA.


--------------------------------------------------------------------------------
Subject:  Q.11  What features will be in the next generation ZyXEL modems?
--------------------------------------------------------------------------------


The new ZyXEL modems are not intended to be just a ZyXEL with a faster 
protocol.  They are intended to be a new GENERATION of ZyXEL modems.  As 
such, they will have some additional features.  There seem to be two at
least two new models -- a V.34 model and a ISDN upgrade for the V.34
models.  Currently, the feature set of the new modems appear to be:

 1] ZyXEL V.34 Modem
    ================

    Main Features:

    * ITU-T V.34 28,800bps to 2,400bps
    * ZyXEL 19,200bps mode
    * ZyXEL 16,800bps mode
    * ITU-T V.32bis/V.32/V.23/V.22bis/V.22/V.33/V.29/V.27bis/V.26bis/
      ZyCellular mode
    * MNP 3-4-5, V.42/V.42bis, V.42 SREJ
    * Flash EPROM for downloadable firmware upgrade
    * ZyXEL parallel port interface
    * 14,400bps V.17 and V.29/V.27ter G3 FAX
    * EIA Class 2/2.0 and Class 1 Fax Commands
    * FAX scan line error report
    * CELP voice compression, 2/3/4-bit ADPCM voice compression
    * Microphone/Speaker voice interface
    * Versatile telephony functions
    * Universal data dump
    * ISDN Upgradable (option)


 2] ZyXEL ISDN Modem - A Seamless Transfer from PSTN to ISDN
    ========================================================

    The ZyXEL ISDN Modem sets new standards in performance and usability
    for ISDN applications. This universal communication platform supports
    the most highly integrated services over ISDN lines without
    sacrificing connectivity to today's more prevalent analog lines. It
    is backward compatible with PSTN and includes most of the fine
    features found in other ZyXEL fax/modems including V.34. The modem
    works with most existing communication software using existing ZyXEL
    AT commands. It also fully supports the current standard ISDN
    application interface, COMMON-ISDN-API versions 1.1a and 2.0. You can
    run all of today's commercially available ISDN applications.
    Upgrading to the ZyXEL ISDN Modem maintains your link to the analog
    world and prepares you for the digital world of tomorrow - today.

    The modem firmware handles both D and B Channels protocols. For
    D-Channel, it supports EDSS1, 1TR6 and NI1/NI2; for B-Channel, X.75
    SLP, V.120, V.110, and Bundle(128Kbps). Better yet, the modem is
    ready for new developments. It has a 512KB flash EPROM that allows
    you to conveniently download and program the modem with new
    protocols using a PC.

    A special compression engine supports V.42bis compression on the
    B-Channel at full speed over ISDN lines. Applied with X.75, V.120, or
    the Bundle protocols, this translates to up to a half-megabits per
    second transfer rate. (That's almost 4-Megabytes per minute!)

    The ISDN Modem has a full feature A/B adapter (analog port) that
    recognizes standard DTMF tones and generates a standard ring signal
    to the connected device. It also generates metering pulses (16KHz for
    Germany and 12KHz for Switzerland) according to the Charging
    Information it receives. If you want, you can use one B-Channel for
    voice communications while sending data over the ISDN through the
    other.

    The key features of the ZyXEL ISDN Modem are:

    * Full compatibility with both ISDN and PSTN
    * Two application program interfaces:
      . ZyXEL ISDN AT Commands
      . CAPI 1.1a and 2.0
    * Supports 1TR6 and EDSS1 D-Channel protocols
    * Supports X.75, V.110, V.120 and Bundle(128Kbps) B-Channel protocols
    * Easy upgrade path using flash EPROM memory
    * V.42bis data compression using the X.75,V.120 and Bundle B-Channel
      protocols.
    * High speed serial/parallel DTE interface
    * Full-feature A/B adapter
    * Digitized voice capability
    * Cryptographic data analyzer with color(ANSI) display
    * Supports NetWare CAPI Manager
    * 8-MB DRAM for on-board fax receiving (optional)


Release of the rackmount versions will follow after the standalone versions.

Please be patient!  The new modems are still being designed.  More information
about pricing, availability, and features will be known, as the shipping date
of the modems approaches.
================================================================================
--
Robert Wong Jr.
1921 East 61st Avenue, Vancouver, B.C., Canada, V5P 2K2, (604) 322-6918
wrob@unixg.ubc.ca
Keeper of the ZyXEL FAQ and Head of the UBC-NeXT Users Group
Standard disclaimers apply.
-- 
Robert W. Wong Jr.                     wrob@unixg.ubc.ca (ASCII only)
Crasher of Automated Banking Machines, Keeper of the ZyXEL modem FAQ,
University of British Columbia NeXT Users Group Leader and 
collector of titles.


From wrob@unixg.ubc.ca Mon Oct 10 01:50:34 PDT 1994
Article: 30014 of news.answers
Path: unixg.ubc.ca!unixg.ubc.ca!wrob
From: wrob@unixg.ubc.ca (Robert Wong)
Newsgroups: comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers
Subject: ZyXEL modem FAQ List v4.0, Oct 9 1994, Part 3 of 5 [Technical FAQs]
Supersedes: <32sgnr$smd@nnrp.ucs.ubc.ca>
Followup-To: comp.dcom.modems
Date: 10 Oct 1994 08:40:44 GMT
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 1583
Sender: wrob@unixg.ubc.ca
Approved: news-answers-request@MIT.Edu
Distribution: World
Expires: Fri, 21 October 1994 00:00:00 GMT
Message-ID: <37aumc$jma@nnrp.ucs.ubc.ca>
NNTP-Posting-Host: unixg.ubc.ca
Summary: Contains common technical questions often asked of/about ZyXEL modems.
Keywords: ZyXEL FAQ FTP
Xref: unixg.ubc.ca comp.dcom.modems:65789 comp.dcom.fax:9494 comp.answers:7732 news.answers:30014


Archive-name: modems/ZyXEL/FAQ/part3
Last-modified: 1994/08/15
Version: 4.0
Posting-frequency:  monthly;the third Monday of every month



                             ZyXEL Modems 
                           Frequently Asked
                            Questions List

                              Version 4.0

                    Archived at: rtfm.mit.edu in 
         /pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]
       
           Please mail any additions to: wrob@unixg.ubc.ca


=================
Table of Contents
=================

T.      Technical Frequently Asked Questions
T.1     What is the latest official ROM release(s)?
T.1A    How does one determine the ROM revision?
T.1B    What does one do if one does not have have the latest ROMs?
T.1C    Where does one obtain EPROMs to update modem ROMs?
T.1Ci   Will Toshiba EPROMs work?
T.1D    What format are the ROM images?
T.1E    What does one do with the latest ROMs?
T.2     In which countries are ZyXEL modems certified to operate?
T.3     What are known country codes?
T.3A    How does one change a country code?
T.4     What kind of power supply is used?
T.5     Are ZyXEL modems Hayes-compatible?
T.6     How do ZyXEL modems deal with escape sequences?
T.7     What is the chip set / data pump used in the modems?
T.7A    What is the advantage of this design?
T.8     What is the meaning of the T401 and T402 timeouts seen in an "AT I2"?
T.9     What is the selective reject in V.42?
T.10    What is the "Capture modem manufacturer information" feature?
T.11    What settings are required to attain the fastest data connection?
T.12    Will V.32terbo be implemented?
T.13    When will V.FAST (V.34) be available?
T.14    Will V.34 fallback speeds be implemented?
T.15    How does one patch GNU NetFax to work properly?
T.16    Why doesn't faxing from WordPerfect work properly?
T.17    Once a fax is received, what does one do?
T.18    How does enabling callback security affect the reception of faxes?
T.19    What is the easiest way to record voice?
T.20    How good is the voice quality?
T.20A   How does the voice quality compare versus the Rockwell chipset?
T.20B   When will better quality speech at higher encoding rates be available?
T.21    Can a voice call be detected by the modem?
T.22    Are the specifications for converting voice files available?
T.23    Can speech be digitized/recorded and played back simultaneously?
T.24    Can DTMF tones be recognized at any time during recording/playback?
T.25    What kind of problems exist with using voice software on Macintoshes?
T.26    Why is there a slight hissing sound from the speaker?
T.27    How does one make Caller ID (CID/CND) work correctly?
T.27A   What exactly is the hardware modification needed for CID/CND and EDR?
T.27B   What software modifications are needed?
T.27C   What if CID/CND and EDR still doesn't work?
T.28    What changes are needed for overseas calling?
T.29    What modifications are needed to S/S+ models to get the eye pattern 
        option?

================================================================================
Subject:  T.  Technical Frequently Asked Questions
================================================================================

Subject:  T.1  What is the latest official ROM release(s)?
--------------------------------------------------------------------------------

        6.13    available only for 1-Mbit EPROMs
        5.05c   available for 1-Mbit and 512-Kbit EPROMs
                (really old non-plus models)
        6.23    for U-1496P (portable) model

The ROM release previous to the 6.13 was version 6.12.  The latest quick 
reference card and the release notes for the latest ROMs can be obtained
via anonymous FTP from the Taiwan or USA FTP sites.

When a new official ROM revision is released, it is available for *ALL* ZyXEL
modems.  Thus when the 6.13 ROMs were released for the U-1494E modems, it
was also available for the E+/B/B+/S/S+ modems (and other ZyXEL models).

Beta ROMs have been known to ship in modems supplied by ZyXEL USA, so you 
may have a newer version than those listed here.


--------------------------------------------------------------------------------
Subject:  T.1A  How does one determine the ROM revision?
--------------------------------------------------------------------------------

For all ZyXEL modems:  Type "ATI" in a terminal program.  If the response is 
"1496", then type "ATI1" in the terminal program.  (Alternatively, 
U-1496/U-1496S or U-1496+/U-1496S+ models can display the ROM revision via 
the product information screen.)

Paul Platt (pep@cypress.com) writes:
There is an easier way to get the firmware revision if you have an S or
S+ model ZyXEL. Select the diagnostic display screen. Move all the way
right. The firmware revision will show on the display.  Note that you
cannot always trust the corner arrow markers. They sometimes indicate
that there is no "next screen" when a "next screen" actually exists.

At some point, the response should have something like "U1496E V 6.13 M".

The "V 6.13" indicates the ROM revision number (i.e. Version 6.13)

The "M" character at the end indicates   1Mbit ROMs.
The "K" character at the end indicates 512kbit ROMs.
The "P" character at the end indicates that the modem is a "Plus" modem.


--------------------------------------------------------------------------------
Subject:  T.1B  What does one do if one does not have have the latest ROMs?
--------------------------------------------------------------------------------

The most convenient way to get the latest ROMS is to buy them.  OCOMP, The 
Questor Project, ZyXEL USA (US$35), and others sell EPROMS with the latest 
EPROM release (cf P.9 or T.1.C).

Another way to get the latest ROMS is to "make" a set.  First, obtain two 
EPROMs (cf T.1C).  Then, FTP the latest ROM image from a FTP site.  (A 
complete ROM image consists of a pair of files.  There is a pair of files for 
each of the E/E+/B/B+/S/S+ models.)  Next, erase the EPROMs with an EPROM 
eraser (UV-light), verify the EPROM has been completely erased, and then use 
an EPROM burner to burn in the latest ROMs (cf T.1.D).

Hint:  Having two sets of ROMs around is a GREAT idea.  Keep the old set that
was in the modem, and install the latest ROMs.  If a bug is found in the new 
ROMs, the old set can be re-installed.  If the new ROMs are OK, then the old 
set can be erased, and reused to burn in the next ROM release.


--------------------------------------------------------------------------------
Subject:  T.1C  Where does one obtain EPROMs to update modem ROMs?
--------------------------------------------------------------------------------

Almost any major electronics supplier should be able to get the needed parts.
You'll also need access to an (E)PROM burner capable of burning 1-Mbit EPROMs.
Shop around for your EPROMs, as prices can vary drastically.  ZyXEL does sell
EPROMs for use in its modems.

You need **TWO** EPROMs for a complete set of ROMs. 

***BUY TWO EPROM CHIPS***

NOTE: Radio Shack doesn't count as a major electronics dealer.

Part number to get: 
27C010         1-Mbit EPROM
27C512       512-Kbit EPROM (really old non-plus's)


Speed (of EPROMs) to get:
                |------------------------------------------|
                |   non-plus models     |    plus models   |
|----------------------------------------------------------|
|  512 kbit     |  150 ns or faster     |  100 ns required |
|----------------------------------------------------------|
|    1 Mbit     |  150 ns or faster,    |  100 ns required |
|               |  120 ns recommended   |                  |
|----------------------------------------------------------|

John Weidman (dk139@cleveland.Freenet.Edu) has bought the 100ns EPROMs (part
number TMS27C010A-10JL) from Newark Electronics (1-800-367-3573 in the US and
Canada).

Ackers Mattias (d2matac@dtek.chalmers.se) has used "ST M27C1001" Signetics 
Thomson (??) 100nS EPROMs and they work fine with his E+ modem.

Andrew Jackson (jackson@stc.nato.int) has also used SGS-Thomson 27C1001 EPROMs.
They work. In his experience, (but not confirmed) these devices apparently do 
not require the external links from Vcc to pin 1.  They cost about NLG 18 each 
(about $9US) around September 1993.

David Bowerman (1:153/290) [Fidonet] has used the Macronix 27C1000 and 
AMD AM27C010 parts as well with no problems being reported.  You do have
to be careful though since the part numbers for that size of EPROMs are a
regular dog's breakfast.  One company's 27C010 is another's 27C1000 and
yet another's 27C1001 -- double check the cross references and make sure
that the chip doesn't need the Vpp pin to be tied to Vcc (+5V) during
normal operation.  The ZyXEL modems don't even have a pin in the socket
at that pin (1) -- a workaround is to solder a 22K resistor from pin 1
to pin 32.  This allows the pin to be pulled high but doesn't allow
enough current to flow during programming to cause problems -- at least
the programmer I'm using doesn't seem to mind.


Note for the inexperienced:
        Using faster ROMs will not make your modem go faster.  The speeds
        recommended are those found to provide good reliability and 
        operation and getting faster ones will not provide any further
        speed enhancement.

Note for the lazy:
        Robert McKeever (mckeeveb@sfu.ca) has purchased a large quantity
        of 27C010's and would be willing to sell some at a reasonable price
        (plus shipping) for those who don't want to shop around.  E-mail him
        for details.

        Robert McKeever (mckeeveb@sfu.ca) would even be willing to have them
        burned for a few bucks more.

        David Bowerman (1:153/290) [Fidonet] at Frog Hollow BBS in Port Moody,
        BC, CANADA, (604)469-0264 BBS (preferred), (604)469-9952 voice will 
        burn a set of EPROMS.  He is asking $5 if you supply the EPROMs, 
        or $25 if he supplies them.  His address is 112 Brookside Drive, 
        Port Moody, BC, V3H 3H4.  Please make sure that you state which 
        modem model you have.

        Sean Foley (1:202/1609) [Fidonet] (18:701/1609) ZYXELnet at System 
        Support BBS in San Diego, CA, USA, (619)563-9207 BBS, (619)563-9311
        voice will burn a set of EPROMS.  His address is 2869 Spruce St., San
        Diego, CA 92104, USA.  He is asking for $5 (shipping included) with 
        the exchange of the old set, or $25 (shipping included) for a new set.
        Please make sure that you state which modem model you have.  The EPROMs
        are burned on new TI 27C010's that are matched to the speed of your
        ZyXEL model.  Each EPROM is verified twice (buffer and CRC) before it 
        is shipped.  He will also include the release notes and such also.

        Wes Newell (1:124/7028) [Fidonet] at Wylie Connection in Wylie, TX,
        USA (214)442-0388 BBS will burn a set of EPROMS.  He is asking for
        $5 (shipping included) for reprogramming the old set, or $15 
        (shipping included) for a new set.  Please make sure that you state
        which modem model you have.  Send him the modem model, the money,
        etc. at 1213 Devonshire, Wylie, TX, 75098 and he will send you a 
        set of EPROMs with the latest ROM version.


--------------------------------------------------------------------------------
Subject:  T.1Ci  Will Toshiba EPROMs work?
--------------------------------------------------------------------------------

Dave Platt (dplatt@ntg.com) mentioned that although the Toshiba EPROMs are 
compatible with the EPROMs used in the ZyXEL in _most_ ways, and would work 
properly in _most_ circuits.  Toshiba EPROMs are not 100% pin-compatible and 
won't work in the modem without a small hardware modification.

To modify the Toshiba EPROMs to work in ZyXEL modems, Peter Nitezki 
(Nitezki@NiDat.sub.org) wrote:
The behaviour of Toshiba EPROMs is well known.  They differ from Texas  
chips slightly, but the way ZyXEL uses them it's crucial.  Toshiba chips  
(and many other) require Vpp to be at Vcc during normal operation.  But  
ZyXEL leaves this pin open (no connector in the socket) as Texas chips
don't need this.  The solution is to solder a bridge from Vpp to Vcc pin,  
that has to be removed every time you want to program the chip.
(IMPORTANT!!! Leaving the bridge in could damage the programmer circuit!)


--------------------------------------------------------------------------------
Subject:  T.1D  What format are the ROM images?
--------------------------------------------------------------------------------

Doug Kushner (71024.1643@CompuServe.COM) writes:
ZyXEL EPROM images are in a binary format.  However, if using a programming
setup that supports multiple flavors of "binary", such as Data I/O's Promlink
software, choose the "Absolute Binary" option.

Soenke Behrens (behrenss@Informatik.TU-Muenchen.DE) and Brent Mosbrook
(brentm@zyxel.com) [ZyXEL USA] explain that the ROMs are in binary format.
They also mention that on most burners, you just load the file, identify it
as a binary file, and specify the starting address of 0.

David Bowerman (1:153/290) [Fidonet] mentions: Verify the EPROM against the 
file image, this is important as EPROMs do wear out after repeated cycling.

Alan Brown (alan@papaioea.manawatu.gen.nz) writes:
If an eprom fails verification, it should be placed under a standard
eraser for a minimum 30 minutes, then reprogrammed using a slower algorithm.
[This may be a way to "recover" a "worn-out" EPROM.]  In all cases, eproms 
should be given "hard" (30 minute) erases every 10 reprogram cycles.


--------------------------------------------------------------------------------
Subject:  T.1E  What does one do with the latest ROMs?
--------------------------------------------------------------------------------

Do an "AT &V" and an "AT &Z?" in the terminal program.  This will show 
the current active configuration settings on your modem.  Print out this 
display.  The information will prove to be handy should something go wrong, or 
should you decide to perform a hardware reset.

Install them!  Instructions are listed on page 15-16 and 15-17 of the ZyXEL
User's Manual (Revision 2.1).  [page 15-7 and 15-8 in the on-line version]
Ensure that each ROM is inserted in the corresponding labelled socket. 

Jussi Torhonen (hhsjto@hhomail.hhofi1.msgw.kone.com) talked to the local
distributor who suggested that a hardware reset is advisable at this point.
The hardware reset procedure is listed on page 15-15 and 15-16 of the ZyXEL
User's Manual (Revision 2.1).  [page 15-7 in the on-line version]  The reset
allows setup of the memory area reserved for new extended S-registers.

The hardware reset will restore the factory default settings (but not the 
country code settings).  To terminate the continuous analog loop test (the 
final phase of the hardware reset) momentarily depress the DATA/VOICE button 
on E/E+ models or use the front panel on S/S+ models.

Barney Campbell (bkc@maths.grace.cri.nz) notes that because the modem's
default is set to a DTE speed of 38.4kbps unless the terminal is pre-set to 
that speed, the hardware test result will appear as garbage on the screen, 
because normally the DTE speed is detected by receiving an AT. However 
a test result is still "available" from the LEDs (U1496E/E+).

To restore the modem to the settings before the hardware reset, re-input the
results of the "AT &V" command.
 
Barney Campbell (bkc@maths.grace.cri.nz) notes that the stored phone numbers 
in the modem are also deleted in the hardware reset.  To restore the modem to
the settings before the hardware reset, re-input the results of the "AT &Z?"
command.


--------------------------------------------------------------------------------
Subject:  T.2  In which countries are ZyXEL modems certified to operate?
--------------------------------------------------------------------------------

Every country has telecommunication laws that prohibit the connection of 
unapproved telecommunication devices, including modems to the phone line.  
Approval by a country's telecommunications regulatory agency may entail 
hardware/firmware modifications to the modem in order to comply with 
telecommunication laws.  This could include modifications for radio-frequency
interference, pulse dial make/break ratios, redial capabilities, etc.

The words "approved for use in country XYZ" mean that the modem *ITSELF* has 
been modified to comply with the telecommunication laws of that country.  
This means that an American FCC approved modem imported to Germany would not 
be a legal telecommunications device in Germany.  The actual modem was 
FCC approved to work in the USA, but not BZT approved to work in Germany.

No one can prevent the above scenario from occurring in any country.
Possession of an unapproved device is usually not illegal.  Attachment of the 
device, however, usually is illegal.  It may result in confiscation of the 
device and/or financial penalties.  [Non-approved ZyXELs have apparently been 
confiscated before in Germany.  You are now cognicent of the albeit slim risks.
Don't say that you were not warned.]

[Rob MacKinnon (robmack@bsc.no) adds that is is illegal to import unapproved 
telecommunications devices into Norway.  Apparently the customs authorities
will send the unapproved device back to the originator if it is found in 
the mail.  If you happen to own an unapproved device, the state acting on 
behalf of Norske Telecom has the right to enter your house and confiscate
the device because it is illegal to own one in Norway, not just use one.]

[Tor Rune Skoglund (torrunes@idt.unit.no) adds:
It is in fact illegal to IMPORT, SELL and USE non-certified modems here 
[in Norway]. Usually, the customs just skim through the invoice to see if there 
any word thats looks like "modem", and then they will refuse to deliver it.]

Aside from the possible legal problems due to using an unapproved device, there
are also some practical problems.  Each ZyXEL modem operating its approved 
country has certain hardware modifications.  These allow the modem to function
better in the telecommunications environment for which it was approved.  For
example:  German ZyXELs have a filter that eliminates the German cost-counting
impulses.  Polish ZyXELs have a reduced ring detector sensitivity that 
prevents voltage spikes from accidentally activating the modem.

Should problems be encountered using an unapproved/uncertified ZyXEL modem,
finding help may be difficult.  The local vendor/distributor would be
reluctant to help, as the product was not purchased from them.  The original
vendor/distributor might be difficult to reach.  ZyXEL Inc. itself may not
be too forthcoming, as product support costs are shifted to the parent
company AND it encourages distributors to export product into another 
distributor's market (distributor turf-wars).

Thus a ZyXEL modem operating in the country (for which it was approved) will 
work better than than an unapproved/uncertified ZyXEL modem.  (Of course,
your milage may vary.)

Below is a list of countries in which ZyXEL modems have been approved for use.
This list is *NOT* complete, nor exhaustive.  If your country is not listed in 
this section, your modem may be approved for use in your country.  This list is
by no means definitive.

Australia, AUSTEL approved

Austria, OePTV (Oesterreichische Post- und Telegraphenverwaltung)
Klaus J. Rusch (k.rusch@ieee.org) writes:
OePTV has approved the 1496E(+) ZyXEL modems, suffixed with the letter
'A' for Austria, for use as data modems. Fax and voice capabilities,
as well as fax/data detection, are available yet not approved in the
Austria models. The modems come with 3 meter TDO cables, ZFAX software
and 220 V 50 Hz power supplies.

Similar to Germany's 1496EG(+), the 1496EA(+) must establish a connection
within twelve tries. Failure to do so causes the modem to block, and
require a manual reset (power off/on). Any request to connect (ATD)
is answered with 'STOP !'. Note: Setting the country code to 233
has the same effect with the 1496E+ model.

Canada, Department of Communications (DOC) approved
        Model Name      Certificate No.         Certification No.  Load No.
        U-1496          9165                    1817 4783 AB       11
        U-1496E         9166                    1817 4783 AB       11
        U-1496B         9167                    1817 4783 AB       11
        U-1496R         9168                    1817 4783 AB       11


Germany, (BZT)
Eelco H. Essenberg (essenber@dutiws.twi.tudelft.nl) writes:
I just read the september issue of the German computer magazine c't.
It appears ZyXEL has obtained BZT certification for a model called
"U-1496EG Plus". This basically is the E+ with a metal housing.
Pulses for pulse-dialing are no longer generated by a relays, but
electronically.  A filter eliminates the german cost-counting impulses.
Automated redialing has been changed (suppressed) according to german
telecom rules. 

[Minimum time between 1st and 2nd try: 5secs;
  "       "     "     2nd  "  3rd try: 60secs;
No more than 12 tries to the same number if no answering tone is
received;
After 12 failed tries, a minimum waiting time of 1 hour before attempting
the same number.]

Sufficient changes have been made so that this beast will only accept ROM 
updates specially designed for it: no chance of reversing the redial disability
this way :-(. Also, the second RJ11 jack, the one in which you connect your 
phone, has been removed.  Worst: while the normal E+ costs around DM900, this 
thing is expected to cost close to DM1400.

In Germany one can buy the 1496EG+, the telecom-certified version of the 1496E+
which has some diffences to the original 1496E:
*The case is metallic
*There is a mechanism implemented which delays and stops redialing after
 several unsuccessful dials.
*ROM-Updates are allowed, but only with certified releases.
*Impulse-dialing is _much_ more silent 
*It's much more expensive (around 1350.- DM) 


Japan, Japan Approvals institute for Telecommunications Equipment (JATE)
Japanese PTT approval is now underway.


New Zealand,
U-1496S, PTC 211/92/035
Alan Brown (alan@papaioea.manawatu.gen.nz) adds:
In New Zealand, a "Telepermit" is issued to the *importer*. If another importer
decides to start carrying an item, even if it's factory modified for NZ, it must 
be resubmitted by the new importer.

On the flipside, "Telepermits" are cheap - NZ$2000 (~US$1050) and include all 
laboratory test costs.


Poland, Ministry of Communications
U-1496E, Polish homologation certificate no. 421/93
U-1496S+, Polish homologation certificate no. 513/93

ZyXEL is probably the only, reasonably priced modem capable of coping with 
the mediocre Polish telephone lines. That comes with a price, however.
ZyXEL modems sold in Poland are a bit different than FCC version, and of 
course more expensive.

Changes:
1) Reduced sensitivity of ringer detector, so no accidental spikes in 
   telephone lines will activate the modem. 
2) Higher input impedance, as required by the telecommunications regulations.
3) Considerably higher DTMF level (than in the FCC model).

While the third modification is relatively easy to implement, through the
replacement of the ROM(s), the other two require significant hardware
change. Scientific [a Polish dealer of ZyXEL and Zoom modems] is authorized 
by ZyXEL to make such changes, including ROMs replacement as well.


Switzerland, Federal Office for Telecommunication (BAKOM)
The present homologation status is shown below.  Any modification 
(technical characteristica, hardware, firmware, etc.) requires 
re-certification.
  Model      Speed     HW       SW      BAKOM #
  U-1496     14.4K     ?      V+      92.1148.D.N
  U-1496B    14.4K   Rev-5A   V5.02   93.0076.D.N
  U-1496E    14.4K     ?      V4.09   92.1149.D.N
  U-1496E+   16.8K   Rev-B2   V5.04   93.0155.D.N
  U-1496E+   16.8K     ?        ?     93.0204.D.N  *
  * this modem was submitted by another importer which no longer sells it

A general note : voice functions are not agreed by BAKOM 


USA, Federal Communication Commission (FCC) approved
        Model Name      FCC number              REN#    Class
        U-1496          1ROTAI-18563-MD-E       1.1B    A
        U-1496B         1ROTAI-18518-MD-E       0.8B    A
        U-1496E         1ROTAI-65020-MD-E       0.5B    B
                           FCC# I88U1496E

Denmark 
Finland   
Hong Kong 
Iceland   
Indonesia
Ireland   
Russia   
Singapore     
Sweden  
Thailand 
Turkey   


--------------------------------------------------------------------------------
Subject:  T.3  What are known country codes?
--------------------------------------------------------------------------------

Country codes customize ZyXEL modems to work better in a particular country.
A ZyXEL modem operating in the country for which it was approved for use, 
should leave its country code unchanged.

Austria:        233
Australia:      244
Belgium:        248
Czechoslovakia: 246
Denmark:        252
Finland:        240
Germany:        237
Greece:         247
Holland:        253
Hong Kong:      242
Hungary:        229
Japan:          234
Malaysia        241
New Zealand:    243
North America:  255
Norway:         245
Poland:         231
Singapore:      241
South Africa:   254
Sweden:         250
Switzerland:    251
United Kingdom: 249


ZyXEL USA does not confirm nor deny the existence of country codes.  Thus
they can not confirm if any entry in the above list is correct.  [Note that
ZyXEL would get into big trouble with the local telecommunications authority
if people suddenly started to import large numbers of non-approved modems into
the country.]

If you know of any other country codes, please mail them to Robert Wong
(wrob@unixg.ubc.ca) for inclusion in a future version of this FAQ.


--------------------------------------------------------------------------------
Subject:  T.3A  How does one change a country code?
--------------------------------------------------------------------------------

To get the current country code (North America = 255), type:
        AT#H

Write down this country code, in case the new country code does not work
properly.

Follow these steps to change the line interface to match those
used/required for operation in various countries.  Type:
        ATS38.1=1
        AT#G123         where 123 is the country code desired.
        AT&W            to save these settings

Probably best to power-cycle the modem at this point.

Again, a ZyXEL modem operating in the country for which it was approved for
use, should leave its country code unchanged.  Changing the country code in
a ZyXEL (for use in that specific country) SHOULD theoretically improve its
operation.  There have been reports to the contrary.  If problems occur from 
using a new country code, reverting to the previous country code might be 
advised.


--------------------------------------------------------------------------------
Subject:  T.4  What kind of power supply is used?
--------------------------------------------------------------------------------

ZyXEL uses a transformer that is a 120V AC, 60Hz, 23.4W model that outputs 
20VAC, 900mA with a center tap.

The transformer should ideally have output between 50 Hz and 60 Hz.

                +-----+
        AC -->  | o o | <-- AC
                 \ o /
                  ---
                   ^
                   +-- Center tap

Michael Chua Boon Wei (chuabw@singnet.com.sg) has a power supply that is a
240V AC, 50 Hz, 27.5W model that outputs 21V AC, 900 mA.  It has the same
pinout as above.

Michael Kuhl (mkuhl@newbridge.com) and Robert Wong (wrob@unixg.ubc.ca) has a 
slightly different power supply that is a 120V AC, 60 Hz, 12.5W model that 
outputs 9V AC, 1000mA.  It is also described as a Class 2 Transformer, 
Part No. 30-111-011496, Model No. A48091000 transformer.  Also, the pinout is
slightly different.

             +-----+
     AC -->  | o o |  <-- No connection
              \ o /
               ---
                ^
                +-- AC


Alan Brown (alan@papaioea.manawatu.gen.nz) has a power supply (non-ZyXEL)
that is a 230V AC, 50 Hz model that outputs 14V AC.  The shape of the
connector is a cylindrical 2.5mm coaxial power socket seen on many other 
pieces of electronic equipment.

ZyXEL modems seem to accept many different voltages ranging from 9 to 20V AC.
The output voltage for the transformers may be as low as 5V AC.  Also, the 
power supply may or may not be center tapped.  Also, in countries with 
220V AC, the local suppliers supply a locally manufactured power supply.

To avoid any potential problems, use only the power supply that came with the
modem.  ZyXEL does sell power supplies for owners should they move to another
country or lose the factory power supply.

Please e-mail Robert Wong (wrob@unixg.ubc.ca) if you have a different power 
supply.


--------------------------------------------------------------------------------
Subject:  T.5  Are ZyXEL modems Hayes-compatible?
--------------------------------------------------------------------------------

Yes, ZyXEL modems are Hayes-compatible.  ZyXELs use the same basic AT command 
set used in the 2400 baud Hayes Smartmodems.

ZyXELs have an enlarged and enhanced AT command set in addition to the basic AT 
commands common to the 2400 baud Hayes Smartmodems.  These additional commands 
deal with higher baud rates, fax settings, voice settings, and other features
that were not present in the original AT command set of 2400 baud Hayes 
Smartmodems.


--------------------------------------------------------------------------------
Subject:  T.6  How do ZyXEL modems deal with escape sequences?
--------------------------------------------------------------------------------

Byte Magazine, V18, N8, July 1993, pg 184 has a good background article about
escape sequences.  The information below is a less technical explanation of 
escape sequences.

An escape sequence switches a modem from transmission mode to command mode.

Sometimes, an AT command needs to be issued to the modem when it is on-line 
and connected with another modem.  Since the modem is on-line, typing an AT 
command would send the AT command down the connection to the other modem.
Thus the local modem never receives and acts on the AT command.  An escape 
sequence is needed to bring the local modem into command mode (without dropping 
the connection to the other modem).

One escape sequence is to drop the DTR (Data Terminal Ready) signal on one of 
the wires in the serial cable.  This is a reliable escape sequence.   Some 
hardware platforms do not have a wire for the DTR signal and therefore cannot 
perform this escape sequence.  Another type of escape sequence is needed.

An alternate escape sequence is a pause, followed by three escape characters, 
and then another pause.  This escape sequence then puts the modem into command 
mode, allowing entry of AT commands.  (The pauses prevent the modem from 
mistaking escape characters in the data stream for "true" escape characters 
in an escape sequence.)

Hayes has a patent on the pause, escape characters, and pause technique.
Other modem manufacturers are required to pay royalties to Hayes for use of
its patent.  Some modem makers are not using the Hayes patent or any other 
method of distinguishing real escape characters.  This causes factory 
configured modems from these modem manufacturers to inadvertently go into 
command mode when the Hayes test file is transmitted.

Taken from Byte Magazine, V18, N8, July 1993, pg 184 without permission:
"Zyxel [sic] has its own algorithm, for which it claims compatibility with 
existing code.  Since the Zyxel [sic] algorithm is proprietary, we can't 
comment on its strength or weakness.  However, it caused no problem in our 
testing."

Taken from BoardWatch Magazine, V6, N9, November 1992 without permission:
"To illustrate the technical elegance of this [ZyXEL] modem, recall our article 
on the Hayes brouhaha over their fixed guard time escape sequence under the
Heatherington 302 patent. Hayes has licensed numerous modem manufacturers to
use this escape sequence.  A few have not licensed it and often, their modems
will escape to command mode while transmitting files containing +++ escape
sequences.  Hayes caused something of a furor in July by releasing a text
file that if transmitted by many modems that don't use the guard time escape
sequence technique, would abort the transfer and improperly escape to command
mode. Multitech's  modems fail the test rather awkwardly.  The ZyXEL modem
does NOT license the Hayes escape sequence.  According to Gordon Yang, they
use a proprietary variable sampling algorithm that does the job at least as
well.  We tried the ZyXEL on the Hayes test file - and sure enough, it worked
like a champ. ZyXEL appears to have engineered a way around the escape
sequence controversy.  Yang indicates that they could conceivably publish the
algorithm. If they did, this would take some serious steam out of the Hayes
licensing program."


--------------------------------------------------------------------------------
Subject:  T.7  What is the chip set / data pump used in the modems?
--------------------------------------------------------------------------------

ZyXEL models do *NOT* use the Rockwell chipset.  ZyXEL uses their own code,
which runs on a Motorola 68000 processor and two Texas Instruments Digital 
Signal Processors (DSP).  The DSPs used are the same type seen in US Robotics
modems.

Barney Campbell (bkc@tahi.isor.vuw.ac.nz) asks:
"What is the data pump on the ZyXEL modem?

PC magazine 1993 June 29,Vol 12, No 12 p 272 reports that the U-1496S+ uses a 
Texas Instruments data pump and that the U-1496E uses a ZyXEL data pump.  Is 
this correct?

If different data pumps are used in each model, then the S+ might be 
OPERATIONALLY different from the E models.  Namely, they might perform 
differently."


Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] replied stating that the Texas 
Instruments and ZyXEL data pumps behave identically.  The DSPs were re-done to 
eliminate the daughterboard on some models.  The models without the 
daughterboard have DSPs which say ZyXEL, while the daughterboard equiped units 
say TI.  Again, there is no real difference and they behave identically.


--------------------------------------------------------------------------------
Subject:  T.7A  What is the advantage of this design?
--------------------------------------------------------------------------------

Again, ZyXEL modems do not use a chipset.  The main advantage to not using a 
chipset is upgradability.  New features and bugfixes can be easily "installed" 
into the modem.

Kolja Waschk (kawk@zerebrm.hanse.de) adds:
"Anyone who has an EPROM-burner might download the newest firmware from a ftp
server or public mailbox (many sites available) and put it in his modem. Just
remember, the ZyXEL's haven't been "voice capable" some months ago, but now
they are - without any hardware changes."

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] also writes (with a great deal 
of marketing-speak):
"The ability to independently design hardware/features is probably
the #1 advantage.  We have been able to add many new features
to the basic modem through rom upgrades. (CID, Distinctive ring,
Voice, EDR, etc.)  

Also, as shown in the past (E --> E+ upgrade), the modem can be
upgraded by modules.  The key components of the modem (CPU, DSP,
ROMS) can be updated/replaced individually.  This allows greater
flexibility in adding new hardware capability to existing products.

As stated here in the past by others, a modem vendor who can design
the product from the ground up generally has a higher caliber 
engineering dept.  They can respond quickly to bug reports, and
have a better understanding of what makes the product tick.
 
A chipset based vendor is completely dependent upon their source
for most bug fixes, and there is no guarantee that the modem 
vendor is capable of implementing the chipset as designed
(even with written instructions from the manufacturer. :))

Bottom line:  there is no guarantee that a DSP based modem is any
better than a chipset based modem... The proof is in the end-result.
Take a look at the reviews, and comments of current users to evaluate
a modem.. These should be part of your selection criteria, in addition
to the DSP/Chipset used."


--------------------------------------------------------------------------------
Subject:  T.8  What is the meaning of the T401 and T402 timeouts seen in an
               "AT I2"?
--------------------------------------------------------------------------------

On page 15-13 of the ZyXEL User's Manual (Revision 2.1), [page 15-6 in the 
on-line version] it says that the T401 and T402 timeouts "are normally zero".

Often these values are not zero.

T401 and T402 are the name for two timers that are used in MNP 4 and V.42 
connections.  The values for both timers are set during the initial handshake.
The T401 is the acknowledgement delay timer that monitors the amount of time 
between the sending of a data block and the receiving of an acknowledgement.
The T402 is an inactivity timer which monitors the time between data blocks 
sent to the receiver.

The terms "T401 Timeout" and "T402 Timeout" refer to the number of timeouts
in the T401 and the T402 timers, respectively.  (A timeout is a "timer 
expiration" and is the result of an action not being performed in a given 
allotted time.)

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] writes:
The "T401 Timeout" indicates the number of resent blocks, due to not 
receiving an acknowledgement in the allotted time.  The T401 timeout is 
just one of the reasons for blocks being resent, so T401 timeouts will not 
necessarily be equal to the BLOCKS RESENT value in a link status report.

The "T402 Timeout" indicates the number of frames sent due to inactivity.
These are sent to keep the link active, and assures the other modem that
the connection is still there.  This number steadily increases, especially 
during a relatively "light" interactive dialup session.


--------------------------------------------------------------------------------
Subject:  T.9  What is the selective reject in V.42?
--------------------------------------------------------------------------------

Selective reject is an optional feature of the V.42 error correction protocol.
The v6.10 ROMs were the first ZyXEL ROMs that implemented selective reject.


Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] writes:
Selective reject is an optional feature of V.42 which allows you to get 
higher throughput on noisy lines.  The modem sends out blocks, and the 
remote side acknowledges after an agreed upon number of blocks (window 
size).  If one of these blocks is bad, then the modem will only send the 
bad one over again, rather than all the blocks (as is the case of other
modems).


The selective reject feature only works when both modems implement it.  Thus a
ZyXEL with 6.10 ROMs will not use selective reject connected to a ZyXEL with 
6.01 ROMs.  When in use, the initial connect string will look somewhat like 
"CONNECT 57600/ARQ/V42b/SREJ" (the exact string varies depending on the 
AT X[0-7] setting).


Chris Gray (cgra@btma74.nohost.nodomain) explains that selective reject is 
an optional part of the LAPM protocol used by V.42 modems.  A SREJ frame 
requests retransmission of one information frame, having the sequence number 
which is cited in the SREJ frame; after this transmission resumes _from 
where we left off_.  Contrast with ``ordinary'' REJ, which requests 
retransmission of _all_ information frames, starting with the one with the 
specified sequence number.  SREJ is more efficient when just one frame has 
got munged.


                      information(4)
        ------------------------------------------->
                     information(5)
        ------------------------------ (bad CRC)
                     information(6)
        ------------------------------------------->  uh uh, we've lost 5
                         SREJ(5)
        <-------------------------------------------
                     information(5)
        -------------------------------------------> that's better
                     information(7)
        ------------------------------------------->  

etc., as opposed to:

                     information(4)
        ------------------------------------------->
                     information(5)
        ------------------------------ (bad CRC)
                     information(6)
        ------------------------------------------->  uh uh, we've lost 5
                         REJ(5)
        <-------------------------------------------
                     information(5)
        -------------------------------------------> that's better
                     information(6)
        -------------------------------------------> yes I knew that 
                     information(7)
        ------------------------------------------->  


Note that SREJ causes some problems when handshaking with modems not 
supporting SREJ.  This is not a bug in ZyXEL modems.  Shutting off SREJ 
will avoid the handshake problem.

--------------------------------------------------------------------------------
Subject:  T.10  What is the "Capture modem manufacturer information" feature?
--------------------------------------------------------------------------------

ZyXEL modems will capture the name of the remote modem when bit 1 of 
S-register 13 is enabled (AT S13.1=1).  This information is obtained 
during the V.42 handshake sequence.  Since the information is an OPTIONAL 
feature, it will only work when the remote modem has also implemented this 
feature.  Some, but not all manufacturers have implemented this feature.

When this information is captured, it is then shown via the ATI2 command, 
in the "Last Speed/Protocol" field.  The following is an incomplete list 
of possible modem manufacturer information:

        Information             Remote modem type
        ZyXEL                   ZyXEL modem
        Flash                   ZyXEL modem
        Dig                     Digicom modem
        HST                     USR Courier modem
        SOF                     Tornado V32B/Fax modem
        ST                              LongShine 9600M5/Fax modem

Please e-mail Robert Wong (wrob@unixg.ubc.ca) if you have seen any other
remote modem types.


--------------------------------------------------------------------------------
Subject:  T.11  What settings are required to attain the fastest data 
                connection?
--------------------------------------------------------------------------------

To obtain the fastest data connection for a ZyXEL, a number of steps should be
taken:

a) Lock the serial port speed to the fastest/highest speed supported by the 
   host computer.
b) Turn off "auto-baud detect", "dial speed-matching", or any similar parameter.
c) Turn on hardware flow control by enabling RTS/CTS flow control in the 
   communications program.
d) Turn off software flow control by disabling XON/XOFF flow control in the 
   communications program.
e) Turn off DSR/DTR hardware flow control, as this is used for null modem 
   connections.  (Recommended if the communications program supports this
   feature.)  
f) External modem owners must use a modem cable that is wired for hardware 
   flow control.

Notes:  1) Again, the modem cable MUST be wired correctly.  Apparently, some 
           modem cables, even from the factory, are not wired properly for 
           hardware flow control. 

Alan Brown (alan@papaioea.manawatu.gen.nz) adds:
I find that it's generally a good idea to switch the modem to CCITT
DSR (AT &S1), even though no programs I use support this for flow
control.

In CCITT mode, DSR comes up before the CONNECT message (actually as
soon as a link standard is established, even though error correction
may still need to be negotiated), and goes down after NO CARRIER


---------------------------------------------------------------------------------
Subject:  T.12  Will V.32terbo be implemented?
---------------------------------------------------------------------------------

ZyXEL USA's response:
V.32terbo is not a CCITT (ITU-TSS) standard, and does not perform as well as 
19.2ZYX.  We will have to see a greater popularity of V.32terbo to support it.


--------------------------------------------------------------------------------
Subject:  T.13  When will V.FAST (V.34) be available?
-------------------------------------------------------------------------------- 

The V.34 draft protocol was presented to member nations in early June 1994.
Voting for the draft protocol will cease on September 20, with the results
of the voting being officially announced in October issue of the ITU 
Notifications. [70% approval is needed for final approval of the draft V.34
specification.]

[Apparently, V.34 did pass!]

For most intents and purposes, V.34 is complete.  Vendors should start,
or have already released V.34 modems. [USR has shipped their US Courier
V.34 modems in late July.]

ZyXEL has stated that their next generation modems is scheduled to ship
at November Comdex.


--------------------------------------------------------------------------------
Subject:  T.14  Will V.34 fallback speeds be implemented?
--------------------------------------------------------------------------------

The V.34 specification (draft) currently calls for fallback speeds of 16.8 
and 19.2 kbps.  Some people have thus inquired about the possibility of 
implementing the 16.8 and 19.2 fallback speeds (in the the current ZyXEL modem
line).

ZyXEL USA's response:
The specifications for V.34 call for a multiple carrier frequency during a
connection ie. multiple baud rates.  ZyXELs currently can only do a fixed 
baud rate during a connection.

If the specifications are modified to not use shifting baud rates, then it 
may be possible.

If the specifications remain unchanged, ZyXEL *MAY* implement V.34 fallback 
speeds.  If and only if ZyXEL decides to implement the fall back speeds, the
work would BEGIN only *AFTER* the new modems ship.


--------------------------------------------------------------------------------
Subject:  T.15  How does one patch GNU NetFax to work properly?
--------------------------------------------------------------------------------

Receiving:

Receiving works flawlessly, PROVIDED that you convince Netfax to send
0x12 instead of 0x11 to the Zyxel when starting to receive a new page.

Apparently the standard changed this over two years ago, and most other 
modems still also accept 0x11 as a compatibility kludge.

Sending:

The key to sending multiple pages is to throw out AT+FDT=a,b,c,d and
replace it with AT+FDT, and to set the desired parameters in a
AT+FDCC=a,b,c,d,e,f,g,h message sent when starting up.

A pre-made set of patches is available from ftp.cs.psu.edu:/pub/fenner/ZyXEL
as a file called netfax.patches


--------------------------------------------------------------------------------
Subject:  T.16  Why doesn't faxing from WordPerfect work properly?
--------------------------------------------------------------------------------

Both WordPerfect and ZyXEL are aware of the problem.

Carl Oppedahl (oppedahl@panix.com) writes:
If WordPerfect customer support can be believed, there is a programming error 
in the ZyXEL firmware.

WP has supposedly been in communication with ZyXEL to urge them to make the 
modem recognize semicolons.

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] acknowledged the bug and
"we are testing the fix right now, and will release it in approximately a 
week."

The problem has apparently been fixed in the v6.11 ROMs.  Problems were only
encountered in the high resolution modem, but not in the standard resolution
mode.

--------------------------------------------------------------------------------
Subject:  T.17  Once a fax is received, what does one do?
--------------------------------------------------------------------------------

A fax is received by the ZyXEL modem and fax software.  The fax (usually) is 
stored as a file on the hard disk in some sort of image format (TIFF, PCX, 
etc.).  This file is called a "fax image".

The fax software or some other software program can be used to open and 
print the fax image.

To put the contents of the fax into a word processor, there are two options:

a) The fax image could just be imported as an image into the document.  This 
   is not a good solution, as the contents of the fax cannot be edited and 
   the image itself may not be too clear.

b) A better alternative is to use a software package that has an Optical 
   Character Recognition (OCR) capability.  [OCR may be built into the fax 
   software, or it may be a separate software package.  Retrieve the fax file 
   into the OCR software and use the OCR software to convert the fax IMAGE 
   into an ASCII file.]  Import this new ASCII file into the word processor.  
   In this manner, the fax image was OCR'ed and is now in a clearer, editable 
   format on the word processor.

Alan Brown (alan@papaioea.manawatu.gen.nz) adds:
For some reason the PCX images generated by ZFAX 2.xx are not readable by
some graphics packages. DISPLAY, Graphics Workshop (all dos versions) and
VPIC (all versions) definitely refuse to display/edit ZyXEL PCX files.

The author of DISPLAY is apparently looking at the problem.


--------------------------------------------------------------------------------
Subject:  T.18  How does enabling callback security affect the reception of 
                faxes?
--------------------------------------------------------------------------------

Incoming fax transmissions will not be prompted for a password when the 
security function AT *Gx is enabled.  Thus reception of faxes is unaffected
by the enabling of security passwords/callbacks.


--------------------------------------------------------------------------------
Subject:  T.19  What is the easiest way to record voice?
--------------------------------------------------------------------------------

One method of recording voice on a ZyXEL modem is from another phone line.  
This method is useful if two phone lines are present.

Another method of recording voice on a ZyXEL modem is to speak into the 
*earpiece* of a telephone handset, which is attached to the line connector of 
the modem.  This technique is may not be too effective.
 
ZyXEL is now shipping a hardware device/box which will make voice recording 
with a ZyXEL much more effective.  The modem plugs into the box, and the 
phone line is plugged into the box.  A switch on the box allows recording
directly from the phone.  This box has the amplifiers built in to record
from an un-powered phone.  No plug-switching necessary.  The ZyVoice box is
now shipping and sells for US$30.00.  

Paul Dowling (dowling@fcs260c.ncifcrf.gov) writes:
"I was skeptical to say the least that this solution [the hardware box] 
would work.  Well, it works MUCH better.  I've only played with it for a 
few minutes, but there is a definite improvement in the quality.  It's 
still not as good as I'd like, and there is still a slight whining noise 
in the background, but this seems to really have worked.

The switch box includes a power converter and 2 RJ-11 wires. There is a button 
next to the dial-up line connection that allows you to select between voice and
normal.  The other side has jacks to connect to the phone and wall lines on the 
modem and to your telephone.  The box is about 3 1/2" x 2 1/2".  I don't like 
the idea of having an external box and I hope in the future they will build it 
into the board, but for now, I'm very pleased with it."


--------------------------------------------------------------------------------
Subject:  T.20  How good is the voice quality?
--------------------------------------------------------------------------------

Saurabh Misra (smisra@eos.ncsu.edu) writes:
"Horrible is not an objective description [of voice quality].  If you realize 
that the voice compression algorithms used in ZyXEL modems are meant for 
telephonic use then you will find the quality quite good.  If you are expecting 
voice quality that compares to that of a radio receiver tuned to a strong 
channel, then you will find the voice quality 'horrible'.  

Basically, the voice quality (especially ADPCM3) is very good and completely
acceptable for telephone use.  As far as the caller is concerned, he won't
know the difference between the ZyXEL's outgoing message voice quality and
that of an answering machine.  This is assuming ADPCM3.  ADPCM2 and CELP are
significantly deteriorated versions of ADPCM3."

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] writes:
"Voice quality can vary depending on a couple factors:
1) recording format (4-bit ADPCM is best sounding)
2) recording method (remote phone, local handset, etc)

To eliminate the need to unplug your handset and phone line (current method
to record msgs locally), we have released a switch box, which will allow
you to plug in your telephone, modem, and phone line to the box, and then
hit a toggle switch to record and playback your messages through the 
TELEPHONE, rather than just the handset."

Kolja Waschk (kawk@zerebrm.hanse.de) writes:
"I believe it's a problem with the quite simple coding algorithms used in the
ZyXEL."  (c.f. T.18A)

Apparently, better voice quality is forthcoming.  To improve voice quality, 
the number of bits and/or the sample rate could be increased.  (c.f. T.19B)


--------------------------------------------------------------------------------
Subject:  T.20A  How does the voice quality compare versus the Rockwell chipset?
--------------------------------------------------------------------------------

Kolja Waschk (kawk@zerebrm.hanse.de) writes:
"Rockwell chipsets do higher quality voice replay. This may be due to the fact
that they use a slightly more complicated ADPCM enconding or due to the fact,
that - in addition to ZyXEL modems - Rockwell chipsets are capable of
encoding the signal using 4 bits per sample. However, the RW chipsets do the 
sampling at 7200 Hz, the ZyXELs do it at 9600 Hz; that make me believe that 
the quality difference depends mostly on the coding algorithm (and tables) 
used.  On ZyXEL modems, it's nearly impossible to record voice without any 
digitally generated background noise; on those Rockwell equipped modems 
which I have seen (heard), it IS possible."


--------------------------------------------------------------------------------
Subject:  T.20B  When will better quality speech at higher encoding rates be
                 available?
--------------------------------------------------------------------------------

4-bit ADPCM was introduced in 07-05-1994, with v6.13 of the ZyXEL ROMs.  The
increased number of bits improves the voice quality noticeably.

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] adds:
"Currently, the sample rate is 9600 samples/second.  3-bit ADPCM requires 
the DTE speed to be 38.4K."

The new 4-bit ADPCM requires a 57,600 DTE speed.

Question Q.10 mentions that there will be a faster DTE rate in the next
generation of modems.  This raises the possibility that even higher
encoding rates may arise in the future.


--------------------------------------------------------------------------------
Subject:  T.21  Can a voice call be detected by the modem?
--------------------------------------------------------------------------------

The modem itself cannot distinguish between an incoming fax/data/voice call.  
With software, it is possible to discriminate between a fax/data/voice call.

Kolja Waschk (kawk@zerebrm.hanse.de) [writer of the ZuTSR and ZUtil] writes:
"The modem itself cannot discriminate between a fax/data/voice call.  Voice 
calls do not differ from normal data calls (assuming most calling modems do 
not send a calling tone).

However, the modem can be told to answer in Voice Mode, and then "listen"
what's on the line. It can detect several possibilities, ie. "fax calling 
tone heard", "modem calling tone heard" (since firmware 6.11), "DTMF tone 
Nr.x heard", and, while in record mode, "caller keeps silent" or "caller 
made some noise and then turned silent". It's the software on the computer 
that should react differently on these reports and switch the modem into 
data/fax mode respectively. Two programs are known to do more : VoiceConnect 
and the (not yet released) new ZUtil do real-time signal analysis on the 
incoming voice data and can detect - in addition to the above mentioned 
events - the presence of "human voice".

The most used method to distinguish between data and voice calls is the
following (flow controlled by the software on the computer)

1. answer the line
2. replay play a spoken greeting message, provoking voice callers to speak
   (a small "Hello?" does the job)
3. listen
4. switch to data/fax mode if a calling tone has been received
5. switch to data/fax mode if the caller keeps saying nothing [The call is not
   conclusively proven to be a data call, but it is reasonably assume to be a
   data call.  Ed.]
6a. handle the voice call if "voice" (only with VC or ZUtil) has been
    detected or simply the caller does not remain silent and does not
    sent calling tones.
6b. handle the voice call if the caller requests it by sending a DTMF
    tone, otherwise switch to data/fax mode

As you might see, the spoken greeting message is quite required to provoke a
reaction of voice callers. Because there is no space yet in the modem's RAM
preserved for storing a greeting message, the above method cannot be
automated and done by the modem stand-alone.

This makes it impossible for communications software - which has not been
designed to do so - to distinguish between data and voice calls. (Anyway, for
software like a FidoNet mailer that uses the FOSSIL serial driver, a tricky
TSR utility exists to do the job - ask me, the author ;-)"

N.B.: This is a new entry.  As far as the Keeper of the ZyXEL FAQ knows, it
      is factually correct.


--------------------------------------------------------------------------------
Subject:  T.22  Are the specifications for converting voice files available?
--------------------------------------------------------------------------------

Yes they are available.  See VCNVT.C (or VCNVT.EXE) for conversion examples.
also, the file format is described in VOICE.TXT.  For decoding CELP data, the 
respective filename is "CELPC.*". Those archives could be obtained from 
several ftp servers and public mailbox systems.


--------------------------------------------------------------------------------
Subject:  T.23  Can speech be digitized/recorded and played back simultaneously?
--------------------------------------------------------------------------------

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] writes:
"There are two DSP's in the modem right now.. one does the outgoing
play, while the other handles incoming DTMF detection.  It is
theoretically possible to do what you describe, but I know of no
plans to do so in this generation of hardware."

Kolja Waschk (kawk@zerebrm.hanse.de) writes:
"It digitizes and analyzes the sum signal at any time when in Voice Mode so
that DTMF tones and calling tones are recognized anytime (this results in the
recognition of DTMF tones which are included in the voice to replay), but you
cannot do both, replay voice from disk and record the incoming signal to your
disk at the same time. (Imagine, using 2-bit ADPCM, this would require a data
flow of totally more than 4800 cps without pauses between the bytes.)"

--------------------------------------------------------------------------------
Subject:  T.24  Can DTMF tones be recognized at any time during recording/
                playback?
--------------------------------------------------------------------------------

Kolja Waschk (kawk@zerebrm.hanse.de) writes:
"Yes. Detection of DTMF tones and calling tones was poor with earlier firmware
versions, but became quite satisfying with firmware 6.11. Modems equipped
with firmware versions below 6.10 have been able to detect DTMF tones _only_ 
while recording/replaying voice; newer firmware allows detection of DTMF and
calling tones also while in command mode."

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] adds:
"6.10a added the S39.6 register, which allows DTMF detection all the time."

--------------------------------------------------------------------------------
Subject:  T.25  What kind of problems exist with using voice software on 
                Macintoshes?
--------------------------------------------------------------------------------

Lars J Poulsen (lars@login.dkuug.dk) writes:
It has been suggested that the newer firmware might use better compression, and
thus work better on a slow machine/slow port.  Can this be confirmed ?

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] replied:
Only if the vendors decide to USE the re-sync feature that is provided.

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] added:
In working with a couple vendors of MAC based voice answering systems, the
speed of the machine, and the resource sharing settings can have a very 
direct, and pronounced effect on the quality of the recordings.

Milton Sagen (sagen@techbook.techbook.com) [Prometheus Products] writes:
Unfortunately yes [there is the poor performance to be expected on an old,
slow machine].  We informed ZyXEL that we didn't recommend running
the software on 8 MHz 68000's until they implemented, what we refer to
as, resyncing of the voice data.  They have now done so in their 6.10
ROMs and the ball is now in our court.  Hopefully we will get to it soon
but until then the behavior you describe is what we expected to happen
on machines such as the SE.



--------------------------------------------------------------------------------
Subject:  T.26  Why is there a slight hissing sound from the speaker?
--------------------------------------------------------------------------------

Robert Wong (wrob@unixg.ubc.ca) and antekl (antekl@hacktic.nl) remarked:
Some modems will make a hissing noice coming from the modem's speaker.  It's 
not very loud, yet loud enough to be heard in a quiet room by a person sitting
nearby the modem.  This sound is still heard, despite the ATM0, ATL0 and ATN0
register settings.
 
Michael Schuster (schuster@panix.com) wrote:
The early boards had three control resistors on the audio amp which were
not quite the right value.  As a result the speaker was never completely
off.  That was ages ago ... well before the Plus models were designed.
On the older board you either replaced three 2.2K resistors with something
higher (3.3K worked for me as I remember) or else stuff some paper toweling
between the speaker and the case.


--------------------------------------------------------------------------------
Subject:  T.27  How does one make Caller ID (CID/CND) work correctly?
--------------------------------------------------------------------------------

Caller ID or Caller Number Delivery is a *paid* service that *may* be available 
from the local phone company.  One can *subscribe* to this service and get a 
ZyXEL modem to display the time, name and phone number of the calling party.

To enable Caller ID detection by the ZyXEL, type in "ATS40.2=1" in a terminal
program.  This procedure was paraphrased from pages 12-5 and 12-6 of the ZyXEL
User's Manual (Revision 2.1).  [pages 12-3 and 12-4 in the on-line version]  
It should enable Caller ID detection.

Should the above procedure be unsuccessful, then a hardware modification might
be necessary. (c.f. T.26A)


--------------------------------------------------------------------------------
Subject:  T.27A  What exactly is the hardware modification needed for CID/CND
                 and EDR?
--------------------------------------------------------------------------------

Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] writes:
"All new ZyXEL modems have a hardware modification performed at the factory.
A capacitor has been added to filter the Caller ID data.

Current owners can have their modems upgraded by sending the modem back to 
ZyXEL, and we will install this capacitor for them.  This might not be 
necessary, and is only recommended for people who live in an area with CND, 
and cannot get it to work.  

Any ZyXEL owner can call us and we will help them determine if they have the 
capacitor installed."


Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA] writes:
EDR on non-US modems:

It has come to our attention that EDR (included with 6.11a roms) does not work 
on modems bought outside the US or Canada.  North American modems have a 
capacitor installed which is used to filter CID, and other tones received
prior to the modem going off-hook.  ZyXEL will not be referencing EDR 
capability on any "international" modems sold.  

Customers who wish to install this capacitor may do so at their own risk
(local telco regulations may restrict performing this modification).  
Due to these possible restrictions, ZyXEL will not be offering a factory 
upgrade, but will help customers in identifying 1) whether or not they 
currently have the capacitor installed. 2) where the capacitor should be 
located.
  

NOTE:   DOING THIS MODIFICATION WILL VOID YOUR WARRANTY, AND MAY VOID THE
        LOCAL PTT APPROVAL.


A .033 uF capacitor needs to be installed parallel to resistor R4
(100K ohms), which is located in different places according to the model, 
and revision level of your modem. A diagram showing the lastest revision 
levels is included to show the general area where R4 can be found.  R4 is 
generally located near the relays (large yellow, brown or black boxes).  
The color code for R4 is brown-black-yellow-gold.(some locally approved 
models may have other values. Generally it is between 75K and 150K ohms.) 
The capacitor should be non-electrolytic, and rated at 100V or higher.  


(these are the latest rev. levels.. older models may differ significantly)

1496S/S+ modems:
----------------

                              RJ-11      RJ-45
---------------               ---  ---  -----
|    RS-232   |               | |  | |  |   |
---------------               ---  ---  -----


                 -------
                 |RELAY|
                 -------
                 -------  o
                 |RELAY|  !  <-- R4
                 -------  o
                 -------
                 |RELAY|
                 -------


1496E/E+ modems:
----------------

                              RJ-11      
---------------               ---  ---  
|    RS-232   |               | |  | |  
---------------               ---  ---  


                           -------
                           |RELAY|  o
                           -------  !
                           -------  o
                           |RELAY|  o
                           -------  !  <-- R4
                                    o 
                         

1496B/B+ modems:
----------------


                                           |-
         ----------------------------------|
                                           |
                                         --|
                                         | | RJ-11
                                         --|
                                         --|
                                      o  | | RJ-11
                               R4 --> !  --|
                                      o    |
                                           |
                                           |
                                           |
        -----------------------------------|
                                           |


--------------------------------------------------------------------------------
Subject:  T.27B  What software modifications are needed?
--------------------------------------------------------------------------------

If Caller ID detection is STILL not functional after the hardware modification,
a possible though rarely used solution is to set the timing of certain 
registers.

Robert McKeever (mckeeveb@sfu.ca) writes:
Way back in September, ZyXEL released a note (now disappeared off my drives)
which described the use of the S45 and S46 registers to set timing.

They (wrongly) assumed that the ringing on the GTD-5 exchanges was exactly
1.75s, following by 50ms silence, then data;  for DMS-100 as a 2s - 3.5s ring
interval, followed by 500ms of silence.

The CallerID length depends on the amount of data the exchange transmits
as its message.


    **********************------++++++++++++++++++
               ^             ^            ^
               |             |            |
             Ring         Silence     CallerID Data

I quote from their message:

<< It is difficult for the modem to receive CallerID signals for both exchanges
without configurable parameters.  Two new parameters are implemented for this
purpose, S45 and S46.  They are called "guard time" and "silence interval",
respectively.

The silence interval is the consecutive silence that the modem should detect
after ring on before CallerID signal to be processed.  Distinctive ringing may
be combined with CallerID, and therefore a guard time is needed for the modem
to inhibit the silence detection.

Registers S45 and S46 are in units of 20ms.  Default setttings should be in
the range of S45=100, S46=28 for DMS-100 (Bell, Northern), and possibly
S45=87 and S46=3 for GTD-5 switches. >>

The place this argument falls down, is on the GTD-5 switch, where they
use "flash ringing".  Flash ringing starts at any point in the ring cycle,
which means you can get anywhere from 0.1s up to 2.0s of ringing current
before the 50ms silent period followed by data from the central office switch.

In any event, you now have the parameters for the critical registers
for CallerID, for whatever good it may do you.


--------------------------------------------------------------------------------
Subject:  T.27C  What else do if CID/CND and EDR still doesn't work?
--------------------------------------------------------------------------------

Contact ZyXEL USA with the following information:
  1. Make/Model of telco switch serving you.
        examples:
        AT&T 5ESS
        AT&T 1AESS
        Northern Telecom DMS-100/200
        GTE GTD-5
 
 2. Ring cadence, as measured by AT#B3
        (this measures the ON/OFF times for incoming rings)
 
 3. Rom revision level? c.f. T.1.A
         
 4. Is there a capacitor on the R4 resistor? c.f. T.26A

Based on the answers to the above questions, ZyXEL can recommend values
for the registers.  ALL of the questions need to be answered to provide
a reasonable response.


--------------------------------------------------------------------------------
Subject:  T.28  What changes are needed for overseas calling?
--------------------------------------------------------------------------------

Anees S. Munshi (asm@eecg.toronto.edu) asks:
"While making overseas calls to specfic countries, the current ZyXEL modems 
mistake the ringing tone for a busy signal and hangup. While this can be 
defeated by setting mode X3 or X1, it is nice to have busy tone detection 
on, and disable it only for specific phone numbers."

Try ONE of the changes below to prevent the problem of false busy signals:
        . disable busy detection completely with AT X2.  This is not a very 
          good solution, as ALL busy signals are then ignored.
        . set Australian short-short ring detection on with S44.7=1.  This may
          work for the country being called.
        . append a ;O (a capital "O") to the end of the phone number. 
          e.g. ATDT 1234567;O  Immediately after dialing the phone number, the 
          modem goes into command mode and then it goes into an on-line state.
  
  
--------------------------------------------------------------------------------
Subject:  T.29  What modifications are needed to S/S+ models to get the eye 
                pattern option?
--------------------------------------------------------------------------------

This modification enables the 3 pins next to the power connector for
the connection of an oscilliscope to view an eye pattern for line diagnostics.

Lars J Poulsen (lars@login.dkuug.dk) wrote:
"The eye pattern is a graphical tool for displaying certain internal
parameters from the digital signal recovery in a V.32(bis) modem.
A table of intermediate results is fed into a pair of digital-to-analog 
converter channels, which can be connected to the X Y Z inputs of an
oscilloscope in X/Y mode.  This displays a characteristic pattern of dots
when the modem is trained."

Note: these 2 chips are CMOS devices and are static sensitive.  Use
suitable caution.

chip Number     Part Number     Manufacturer            Description
--------------------------------------------------------------------------
U11             AD7528JN        (Analog Devices)        8-bit buffered DAC
U12             TL072CP         Texas Instruments       2 x FET op-amp

Paul Cantrell (paul@bosserv.bos.locus.com) called ZyXEL USA to modify his 
S/S+ modem to display the eye pattern.  Apparently ZyXEL USA no longer does 
the modifications any more.  The demand for this service was requested so 
infrequently that they don't have the traces on the new boards.

================================================================================
--
Robert Wong Jr.
1921 East 61st Avenue, Vancouver, B.C., Canada, V5P 2K2, (604) 322-6918
wrob@unixg.ubc.ca
Keeper of the ZyXEL FAQ and Head of the UBC-NeXT Users Group
Standard disclaimers apply.
-- 
Robert W. Wong Jr.                     wrob@unixg.ubc.ca (ASCII only)
Crasher of Automated Banking Machines, Keeper of the ZyXEL modem FAQ,
University of British Columbia NeXT Users Group Leader and 
collector of titles.


From wrob@unixg.ubc.ca Mon Oct 10 01:51:12 PDT 1994
Article: 30016 of news.answers
Path: unixg.ubc.ca!unixg.ubc.ca!wrob
From: wrob@unixg.ubc.ca (Robert Wong)
Newsgroups: comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers
Subject: ZyXEL modem FAQ List v4.0, Oct 9 1994, Part 4 of 5 [Info Sources]
Supersedes: <32sgt8$smh@nnrp.ucs.ubc.ca>
Followup-To: comp.dcom.modems
Date: 10 Oct 1994 08:47:21 GMT
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 294
Sender: wrob@unixg.ubc.ca
Approved: news-answers-request@MIT.Edu
Distribution: World
Expires: Fri, 21 October 1994 00:00:00 GMT
Message-ID: <37av2p$jn1@nnrp.ucs.ubc.ca>
NNTP-Posting-Host: unixg.ubc.ca
Summary: Contains listing of sources where more information/files/etc. about 
         ZyXEL modems can be found.  Anonymous FTP sites, mail servers, and 
         mailing lists are enumerated.  Possible references to CELP compression 
         are also listed.
Keywords: ZyXEL FAQ FTP
Xref: unixg.ubc.ca comp.dcom.modems:65791 comp.dcom.fax:9496 comp.answers:7734 news.answers:30016


Archive-name: modems/ZyXEL/FAQ/part4
Last-modified: 1994/08/15
Version: 4.0
Posting-frequency:  monthly;the third Monday of every month



                             ZyXEL Modems 
                           Frequently Asked
                            Questions List

                              Version 4.0

                    Archived at: rtfm.mit.edu in 
         /pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]
       
           Please mail any additions to: wrob@unixg.ubc.ca


=================
Table of Contents
=================

I.      Information Sources
I.1     FTP servers known to Carry ZyXEL info
I.2     Mail servers known to carry ZyXEL info
I.3     Known mailing lists dealing with ZyXEL modems
I.4     ZyXEL's CELP compression mode for voice


================================================================================
Subject:  I.  Information Sources
================================================================================

Subject:  I.1     FTP servers known to Carry ZyXEL info
--------------------------------------------------------------------------------

ftp.csie.nctu.edu.tw                    mirror of ZyXEL (Taiwan) BBS
                                        Look in /ZyXEL

cca.camb.com                            Mirror of ftp.csie.nctu.edu.tw

ftp.zyxel.com  OR:                      ZyXEL USA FTP site
ftp.sdsc.edu                            Look in /pub/other/zyxel
                                        Contains latest official roms and
                                        software.  (Not intended to replace 
                                        the ZyXEL BBS, which has a much wider
                                        array of available files.)

ftp.tcl.com.hk                          TCL Technology FTP site
                                        Look in /pub/TCL/ZyXEL

grind.isca.uiowa.edu                    Look in /info/ZyXEL

iacrs1.unibe.ch                         Look in /pub/ZyXEL
                                        another mirror of ZyXEL, Taiwan

ftp.cd.chalmers.se                      Look in /pub/zyxel
                                        Same info as above sites, with more
                                        files from ZyXEL, USA BBS and
                                        more voicemail programs

ftp.luth.se                             ROM images, files, info, etc.
                                        Look in /pub/misc/zyxel


ftp.cs.psu.edu                          Look in /pub/fenner/ZyXEL
                                        Owner says: odd tibits, etc.
                                        Usually no ROM images.

ftp.twi.tudelft.nl                      Look in /pub/ZyXEL
                                        Eprom images, zfax, FAQ and other
                                        goodies

kaiwan.com                              Look in /pub/ZyXEL.US.bbs.mirror
                                        Contains files from ZyXEL BBS

sgi.com                                 Look in /sgi/modems
                                        Contains file called: fix-zyxel
                                        (mirrored on wuarchive.wustl.edu)
                                        Replacement files for /usr/lib/uucp
                                        and /etc (gettydefs) to use ZyXELs
                                        Look in /sgi/fax
                                        Contains FlexFAX software

shape.mps.ohio-state.edu                Look in pub/netfax-zyxel
                                        Contains netfax patches for ZyXELs

sparco.com                              Look in /pub/sparco
                                        Contains pricing and order info for
                                        Sparco, a ZyXEL mail-order vendor

129.26.9.88 (name unknown)              Look in /usr/pub/zyxel/ibm/jhb
                                        Contains beta version of PD voicemail
                                        program for PC

Germany:

dsrbg2.informatik.tu-muenchen.de        Look in /physik/ZyXEL
                                        Contents similar to ftp.luth.se

faramir.informatik.uni-oldenburg.de     Look in /pub/amiga/incoming/zyxel
                                        pretty much a mirror of ROM images,
                                        etc.

quepasa.cs.tu-berlin.de                 Look in /pub/atari/modem
                                        File called: zyxelinf.lzh

ftp.rrzn.uni-hannover.de                Look in /pub/special/zyxel

ftp.uni-stuttgart.de                    Look in /pub/systems/pc/comm/zyxel

sun.rz.tu-clausthal.de                  Look in /pub/atari/telecomm
                                        File called: zyxelinf.lzh

vax.ph-cip.uni-koeln.de                 Look in /pub/amiga/comm/zyxel
                                        Contains amiga-soft for ZyXELs
                                        and newest ZyXEL-ROMs



**********************
MAC FILES...

        FILE: ara-zyxel-u1496e.hqx

biom3.univ-lyon1.fr   (134.214.100.42)
    Location: /pub/mac/comm

akiu.gw.tohoku.ac.jp   (130.34.8.9)
    Location: /pub/mac/comm/CTB

uhunix2.uhcc.hawaii.edu   (128.171.44.7)
    Location: /mirrors/info-mac/comm

wuarchive.wustl.edu   (128.252.135.4)
    Location: /mirrors2/info-mac/comm

utsun.s.u-tokyo.ac.jp   (133.11.11.11)
    Location: /ftpsync/info-mac/comm

sumex-aim.stanford.edu   (36.44.0.6)
    Location: /Volume1/info-mac/comm

sics.se   (192.16.123.90)
    Location: /pub/info-mac/comm

pinus.slu.se   (130.238.98.11)
    Location: /pub/mac/comm

sally.informatik.rwth-aachen.de   (137.226.112.172)
    Location: /pub/rz.archiv/simtel/info-mac/comm

swdsrv.edvz.univie.ac.at   (131.130.1.4)
    Location: /mac/info-mac/comm

ftp.uu.net   (137.39.1.9)
    Location: /systems/mac/info-mac/comm

lth.se   (130.235.20.3)
    Location: /pub/mac/info-mac/comm

metten.fenk.wau.nl   (137.224.129.4)
    Location: /info-mac/comm

nic.switch.ch   (130.59.1.40)
    Location: /mirror/info-mac/comm

**********************

        FILE: zyxel.sit.hqx

wuarchive.wustl.edu   (128.252.135.4)
    Location: /mirrors3/archive.umich.edu/mac/util/comm/ara

garbo.uwasa.fi   (128.214.87.1)
    Location: /mirror/umich.macarchive/util/comm/ara

**********************

        FILE: ara-zyxel-u1496.hqx

akiu.gw.tohoku.ac.jp   (130.34.8.9)
    Location: /pub/mac/comm/CTB

uhunix2.uhcc.hawaii.edu   (128.171.44.7)
    Location: /mirrors/info-mac/comm

wuarchive.wustl.edu   (128.252.135.4)
    Location: /mirrors2/info-mac/comm

sumex-aim.stanford.edu   (36.44.0.6)
    Location: /Volume1/info-mac/comm

*********************
MISC. MACINTOSH FILES...

wuarchive.wustl.edu   (128.252.135.4)
    Location: /mirrors3/archive.umich.edu/mac/util/comm/ara
      FILE: zyxelu1496.sit.hqx

pollux.lu.se   (130.235.132.89)
    Location: /pub/mac/comm
      FILE: ara-zyxel-u1496.cpt.hqx

garbo.uwasa.fi   (128.214.87.1)
    Location: /mirror/umich.macarchive/util/comm
      FILE: comm/arazyxel.sit.hqx
    
    
Amiga FTP (AmiNet) sites:
*************************

Australia
        splat.aarnet.edu.au    192.107.107.6  (*)
         (*) closed 6:30am to 4pm weekdays

Germany
        ftp.uni-kl.de          131.246.9.95 
        ftp.uni-erlangen.de    131.188.1.43
        ftp.cs.tu-berlin.de    130.149.17.7   
        ftp.th-darmstadt.de    130.83.55.75 
        ftp.uni-paderborn.de   131.234.2.32  

Switzerland
        litamiga.epfl.ch       128.178.151.32
 
Scandinavia
        ftp.luth.se            130.240.16.3 

USA
        ftp.wustl.edu          128.252.135.4 
        merlin.etsu.edu        192.43.199.20
        wcarchive.cdrom.com    192.153.46.2



--------------------------------------------------------------------------------
Subject:  I.2  Mail servers known to carry ZyXEL info
--------------------------------------------------------------------------------

questor.org
        send mail to 'mail-server@questor.org' with a body of 'HELP' to 
        get instructions


--------------------------------------------------------------------------------
Subject:  I.3  Known mailing lists dealing with ZyXEL modems
--------------------------------------------------------------------------------

zyxel-programmers@sfu.ca
        Please send all subscription/cancellation requests to
        owner-zyxel-programmers@sfu.ca

mgetty@greenie.muc.de
        Please send all subscription/cancellation requests to
        mgetty-request@greenie.muc.de



--------------------------------------------------------------------------------
Subject:  I.4  ZyXEL's CELP compression mode for voice
--------------------------------------------------------------------------------

CELP compression is currently available only on Plus model modems.  The 
implementation of CELP in the ZyXEL plus model modems is proprietary.  As
such, ZyXEL has not published any information regarding the manual decoding/
encoding using this method.  ZyXEL also will not confirm nor deny any 
sources of information that will will further elucidate the CELP decoding/
encoding algorithms.

A listing of all the US Federal Standard 1016 sources is available by
sending e-mail to Robert Wong (wrob@unixg.ubc.ca).  

The numerous pages of USFS descriptions do not help in decoding ZyXEL's CELP.
They may help to understand what ZyXEL's CELP C code basically does. The 
USFS 1016 descriptions are nice to learn about what CELP *could* do ;-)

For further understanding of CELP, it needs a real mathematician and deeper
knowledge of voice processing theories.)

================================================================================
--
Robert Wong Jr.
1921 East 61st Avenue, Vancouver, B.C., Canada, V5P 2K2, (604) 322-6918
wrob@unixg.ubc.ca
Keeper of the ZyXEL FAQ and Head of the UBC-NeXT Users Group
Standard disclaimers apply.
-- 
Robert W. Wong Jr.                     wrob@unixg.ubc.ca (ASCII only)
Crasher of Automated Banking Machines, Keeper of the ZyXEL modem FAQ,
University of British Columbia NeXT Users Group Leader and 
collector of titles.


From wrob@unixg.ubc.ca Mon Oct 10 01:51:23 PDT 1994
Article: 30017 of news.answers
Path: unixg.ubc.ca!unixg.ubc.ca!wrob
From: wrob@unixg.ubc.ca (Robert Wong)
Newsgroups: comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers
Subject: ZyXEL modem FAQ List v4.0, Oct 9 1994, Part 5 of 5 [Product Info]
Supersedes: <32sh29$smm@nnrp.ucs.ubc.ca>
Followup-To: comp.dcom.modems
Date: 10 Oct 1994 08:49:36 GMT
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 986
Sender: wrob@unixg.ubc.ca
Approved: news-answers-request@MIT.Edu
Distribution: World
Expires: Fri, 21 October 1994 00:00:00 GMT
Message-ID: <37av70$jn7@nnrp.ucs.ubc.ca>
NNTP-Posting-Host: unixg.ubc.ca
Summary: Contains listing of software products (broken down by software
         platform) that work with ZyXEL modems.  A list of ZyXEL modem vendors
         is also listed
Keywords: ZyXEL FAQ FTP
Xref: unixg.ubc.ca comp.dcom.modems:65792 comp.dcom.fax:9497 comp.answers:7735 news.answers:30017


Archive-name: modems/ZyXEL/FAQ/part5
Last-modified: 1994/08/15
Version: 4.0
Posting-frequency:  monthly;the third Monday of every month



                             ZyXEL Modems 
                           Frequently Asked
                            Questions List

                              Version 4.0

                    Archived at: rtfm.mit.edu in 
         /pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]
       
           Please mail any additions to: wrob@unixg.ubc.ca


=================
Table of Contents
=================

P.      Product Information
P.1     NeXTSTEP software that works with ZyXEL modems
P.2     UNIX software that works with ZyXEL modems
P.3     MacIntosh software that works with ZyXEL modems
P.4     OS/2 software that works with ZyXEL modems
P.5     MS-DOS software that works with ZyXEL modems
P.6     MS-Windows software that works with ZyXEL modems
P.7     Amiga software that works with ZyXEL modems
P.8     Atari ST/TT/Falcon software that works with ZyXEL modems
P.9     ZyXEL modem vendors


================================================================================
Subject:  P.  Product Information
================================================================================

Subject:  P.1  NeXTSTEP software that works with ZyXEL modems
--------------------------------------------------------------------------------
am v1.16, voice/data/fax software
  Answering Machine is a programmable voicemail system with fax receive
  capability.  Detects if caller is a fax-machine, a modem or a human. 
  Faxes will be converted so that they can be read with the FaxReader.
  Recorded messages (ADPCM 2 & 3) will be converted that you are able
  to use the SoundPlayer.  Modem calls just log in.  Outgoing calls like 
  SL/IP,tip,cu ...- no problemo.
  FTP from cs.orst.edu or ftp.informatik.uni-muenchen.de and get the file
  called /pub/comp/platforms/next/Communication/programs/am.1.16.s.tar.gz
Patrick Stein (alias Jolly), later modified by Axel Habermann
Voice:  ++49 (0) 89 - 36 40 72
E-Mail: jolly@cis.uni-muenchen.de, or Axel Habermann (kiwi@belly.in-berlin.de)
Cost:   free (sleepware)

Connect It! v1.0.1, UUCP administration software
  UUCP, sendmail, and modem configuration software
Black Market Technologies, Inc.
200 Warren Street
Brooklyn, NY  11201
Time:   Eastern Standard Time
Voice:  (718) 522-5090
Fax:    (718) 852-4249
E-Mail: info@bmt.gun.com
Cost:   US$145

NXFax v1.04, fax/data software
  Monitors serial ports and transparently switches between data and fax.
  Supports both NeXTstep for Motorola and Intel
Black and White Software
Bridge Street Marketplace
Waitsfield, VT 05673-1210
Time:   Eastern Standard Time
Voice:    (802) 496-8500
Fax:      (802) 496-5112
E-Mail:   Linda Rosen (nxfax@bandw.com)
Cost:     US$135


--------------------------------------------------------------------------------
Subject:  P.2  UNIX software that works with ZyXEL modems
--------------------------------------------------------------------------------

ArnetFAX, fax software
Arnet Corporation
618 Grassmere Park Drive
Nashville, TN 37211
Time:   Eastern Standard Time (?)
Voice:  (800) 366-8844
E-Mail: Clarence Whaley (clarence@arnet.com)
 
DigiFAX, fax software
Digiboard
6400 Flying Cloud Drive
Eden Prairie, MN 55344
Time:   Central Standard Time
Voice:  (612) 943-9020
E-Mail: Chad Chessen (chadc@digibd.com)

Faximum ELS and Faximum PLUS, fax software
  Available for most Intel-based UNIX/XENIX (AT&T, Interactive, SCO, etc.).
  Ports to Sun, IBM RS/6000, and others in progress.  Highly rated, feature 
  rich fax software that supports both PCL-5 and PostScript documents with 
  dozens of scalable fonts.
Faximum Software Inc.
300 - 1497 Marine Drive
West Vancouver, BC
Canada, V7T 1B8
Tel:    (604) 925-3600
Fax:    (604) 926-8182
E-Mail: info@Faximum.com
Cost:   US$695 for Faximum ELS
        US$995 for Faximum PLUS

FaxX, fax software
  At the moment, we are working on a voice-mailbox for the ZyXEL, including
  fax-back, call-distinction and other features. 
  There is no US-Distributor, yet.
QUEST systems GmbH
Detmarstr. 1
44137 Dortmund
Germany
Voice:  +49 231 914028-0
Fax:    +49 231 914028-40
Cost:   DM 1998,-- (US$ prices will be lower)


FlexFax v2.2.2, fax software (*FREE*)
FTP from sgi.com and get the file sgi/fax/v2.2.2.src.tar.Z
Cost:     *FREE*

Gnu NetFax v3.2.1, fax software
FTP from ftp.gnu.mit.edu
Cost:     *FREE*

mgetty+sendfax v0.20, getty replacement with FAX-receive capabilities
  It's a heavily customized "getty" process allowing data and fax dial-ins,
  a small "sendfax" program to allow one-shot faxing of pbmtog3- or 
  ghostscript-digifax-created fax pages, and a couple of auxiliary programs 
  for fax queueing etc.  Also includes voice support, fax polling, fax poll
  server (that is, the machine that is *called* when polling). 
FTP from sunsite.unc.edu in /pub/Linux/system/Serial
Or, send e-mail to the author and he shall mail the source code (about 220
Kbytes (gzip'ed)).
E-Mail: Gert Doering (gert.doering@physik.tu-muenchen.de)
Fax:    +49-89-3243328
Cost:   *FREE* (donations welcome)

TruFax, voice/data/fax software
  Facsimile Support Program for Unix Computer Systems
  Runs on a variety of platforms including most X86 unixes (like SCO, 
  UnixWare, Interactive, etc.) as well as Sun, HP, RS6000, Sequent, 88Open.
Computer Organization System, Inc
9 Huron Way
Lawrenceville, NJ 08648
Voice: (609) 771-6705
Fax:   (609) 530-0898
E-Mail: trufax@cosi.com

vgetty (alpha software), voice software
  Acts as a simple answering machine.  In conjunction with mgetty+sendfax it
  will allow normal data and fax dial-ins.  It's quite modular, so it should
  even be possible to build a kind of a voice mailbox around it (shell script).
For further information or sources, please contact Klaus Weidner,
the author and maintainer of vgetty
FTP from ftp.informatik.tu-muenchen.de in /tmp/mgetty*
E-Mail: Klaus Weidner (klaus@snarc.greenie.muc.de)
Cost:  Free (some restrictions on resale)

Rob Janssen software (currently unnamed?), voice/data/fax software
  Does dial-back security, dial-in security, and manages dial-in/out, faxes,
  and answering machine functions.  An integrated all-in-one solution.
  Compiled for Linux and SVR4.
UUCP to (phone number unknown) during the hours of 2300-0730 local time.
The phone number is a voice line as well.  Therefore the UUCP service is 
only available during these hours and IT IS NOT AVAILABLE AT ANY OTHER 
TIME!!!  Local time is one hour later than GMT. (name of time zone unknown)
and get the files ~/ZyXEL/ZyXEL.tar.gz and ~/ZyXEL/ZyXEL-source.tar.gz
E-Mail: Rob Janssen (rob@pe1chl.ampr.org)


--------------------------------------------------------------------------------
Subject:  P.3  MacIntosh software that works with ZyXEL modems
--------------------------------------------------------------------------------

Fax Stf v3.0, fax software
STF Technologies Inc.
Jct. I-70 and Hwy. 23
Concordia, MO 64020
Time:   Central Standard Time
Voice:  (816) 463-2021
Fax:    (816) 463-7958

MacVoice v1.0, voice software
  MacVoice 1.0 supports all voice features.  It requires a 68020 or better
  Macintosh.  (But will work with ADPCM2 on 16Mhz 68000 as well).   
  MacVoice 1.1 will support all foice and fax features, and will be priced at 
  $29.95.
  Presently Raleigh Shareware is looking for dealers of its product.  Dealer
  enquiries are welcome.
Raleigh Shareware
PO Box 37441
Raleigh, NC 27627.
Time:   Eastern Standard Time
Voice:  (800) 237 8128 (Does NOT work in Canada)
Cost:   US$19.95

MaxFax v3.3.2z, voice/fax software
A new version that supports recording via the switchbox will be out soon.  It 
will be available on the ZyXEL BBS or ZyXEL FTP site. 
Prometheus Products
9524 S.W. Tualatin Sherwood Rd.
Tualatin, OR  97062
Time:   Pacific Standard Time
Voice:  (503) 692-9600 
Voice:  (503) 692-9601 (tech support)

ZyVoice (aka MaxFax v3.3.2z), voice/fax software
ZyXEL, USA
Time:   Pacific Standard Time
Voice:  (714) 693-0808 (Sales)
   or:  (800) 255-4101 (Works in Canada)
FAX:    (714) 693-8811
Cost:   US$60


--------------------------------------------------------------------------------
Subject:  P.4  OS/2 software that works with ZyXEL modems
--------------------------------------------------------------------------------

AM4PM v0.8f (Answering Machine For Presentation Manager)(beta), voice software
  Acts as an answering machine. Data and fax calls are/can be routed to other 
  programs.
  Version 1.0 should be shipping by end of January.
Thomas Olsson
Gotabergsgatan 28
S-411 34  Gothenburg, Sweden 
Voice:  +46 31 819850
Fax:    +46 31 812139
E-Mail: Thomas Olsson (thomas@vinga.trillium.se)

BinkleyTerm Extended Edition v2.50 EE rev E, front end mailer for Fidonet BBSs
  This is a "hacked" version of the original (also freeware) BinkleyTerm
  Fido-technology front-end mailer for Fido BBSs.  The inbound FAX files are 
  stored in raw G3 TIFF format.  It has some nice features on it like HYDRA 
  Protocol and ISDN aware, etc..  There exists two or three versions but it 
  will not be revised further.
Michael Buenter
Untere Wiese 3
CH 6020 Emmenbruecke
Switzerland
E-Mail: Michael Buenter (buenter@iis.ethz.ch), 2:301/601 or
        2:301/602 (Fidonet)
Cost:   *FREE* 

BinkleyTerm Standard Edition v2.59b, front end mailer for Fidonet BBSs
 Supported by Bit-Bucket software, BinkleyTerm has incorporated the 
 FAX-receive capabilities of Michael Buenter's Extended Edition
E-Mail: Vince Perriello (vince.perriello@f491.n343.z1.fidonet.org)

C-Kermit 5A(189) for OS/2, terminal emulator & kermit protocol
  Terminal program with VT-100 emulation and Kermit file transfer protocol.
FTP from ftp-os2.cdrom.com and get the file /pub/os2/all/comm/cko5a189.zip
Cost:   *FREE*

FaxWorks for OS/2 v3.0 (?), fax software
SofNet, Inc.

MakeFAX v1.0
 Converts Binkley's raw G3 FAX files into ZFAX multi-page FAX files.
 
PMCOMM, data software

ReFax/2 for OS/2 v1.20, fax software
  Receive fax for Mailer and BBS systems (replaces RCVFAX / ZFAX)
Jonny Bergdahl
now accepting credit card registrations
E-Mail: 2:204/500 (FidoNet)
Cost:   Shareware

SIO 1.30U for OS/2
  Replacement serial port drivers.  These replace OS/2's standard COM port
  drivers and give more options, especially for use with 16550 UARTs.
  (NOTE: Version 1.24 has just been released)
FTP from ftp-os2.cdrom.com and get /pub/os2/2_x/drivers/sio120.zip
Cost:   $15 (Shareware, quantity discounts available)

Softerm (PM Terminal)
  PM terminal program included in OS/2 package.

Softerm Plus for OS/2
  Shareware PM terminal program which expands upon Softerm.  Has several
  terminal emulations, many transfer protocols, and dozens of options.
FTP ftp-os2.cdrom.com and get the file /pub/os2/all/comm/softos2.zip
Cost:   $35 (Shareware)
        $50 (includes bound manual and disks)

TE/2 (Terminal Emulator for OS/2), data software
 Premier commercial text-mode terminal program for OS/2.

Zap-O-Com 1.0 for OS/2
  PM terminal program with VT-100 and ANSI emulations, scripting, X-, Y-, and
  Z-Modem transfers, etc.
FTP to ftp-os2.cdrom.com and get the file zoc100.zip.  Currently (12/30) under
  /pub/os2/incoming, but should be moved to /pub/os2/2_x/comm soon.
Cost:   US fees are $50-$70 (Shareware) but vary depending upon registration
        level; disks or CompuServe registration costs more.

ZFax v3.22, voice/fax software
*NOT* a true OS/2 program, but will run if COM device drivers are virtualized.
Download zfax20.zip from the ZyXEL USA BBS.
Cost:   free

--------------------------------------------------------------------------------
Subject:  P.5  MS-DOS software that works with ZyXEL modems
--------------------------------------------------------------------------------
ANSWER v3.7f, Voice software
 Voice Mail System for ZyXEL/Zoom modems
FTP from OAK.Oakland.Edu in SimTel/msdos/voicmail/ans37f.zip
E-Mail: Daniel Durbin (dand@eskimo.com)
Cost:   Shareware

BGFAX v1.36, allow sysops of *ANY* class 2.0 faxmodem to take faxes/bbs calls
  For MSDOS sysops running BBS'es with Class 2.0 compliant fax modems; it 
  allows them to receive both data calls and faxes.  Also includes the ability
  to send faxes as well (so if you're waiting for an important fax, you can 
  set it to forward all received faxes to your work or other places).
FTP from csn.org (or teal.csn.org) and get the file Computech/bgfax136.arj
E-Mail bgfax-request@stat.com for a uuencode copy to you via E-Mail.
FidoNet FREQ at 1:106/400 with the magic name BGFAX
B.J. Guillot
2611 Rushwood Circle
Houston, Texas 77067-1941
Time:   Central Standard Time
Voice:  (713) 893-9320
Fax:    (713) 893-9124
BBS:    (713) 893-9124
E-Mail: B.J. Guillot (st1r8@jetson.uh.edu), 1:106/400 (FidoNet)
Cost:   US$25

BinkleyTerm Extended Edition Revision D, front end mailer for Fidonet BBSs
  Inbound FAX files are stored in raw G3 TIFF format.  Code development has
  STOPPED on this software.  The last version was dated late 1992.  All new
  revisions will be on the OS/2 platform.
Michael Buenter (buenter@iis.ethz.ch or Fidonet 2:301/601 or 2:301/602)
Untere Wiese 3
CH 6020 Emmenbruecke
Switzerland
E-Mail:  Michael Buenter (buenter@iis.ethz.ch), 2:301/601 or 
         2:301/602 (Fidonet)
Cost:    *FREE* 

BinkleyTerm Standard Edition v2.59b, front end mailer for Fidonet BBSs
 Supported by Bit-Bucket software, BinkleyTerm has incorporated the 
 FAX-receive capabilities of Michael Buenter's Extended Edition
E-Mail: Vince Perriello (vince.perriello@f491.n343.z1.fidonet.org)

DataFAX v4.01, Single User/Network Fax Software.
  DOS and MS Windows, dedicated and non-dedicated fax servers available.
  The next version of DataFAX supports the voice capabilities of ZyXEL.
TRIO Information Systems
8601 Six Forks Road, Suite 615
Raleigh, NC 27615
Voice:  (800)880-4400
Voice:  (919)846-4990
Voice:  +46 8 570-305-90 (Europe)
Fax:    (919)846-4997
BBS:    (919)846-4987
E-Mail: Franklin S Schultz (fss@rock.concert.net)
Cost:   $129 SU / $375 and up Network

FrontDoor v2.21, Front end for Fidonet BBSs (?)
  Incorporates FAX receive capability right into the software, but unlike 
  Binkley EE, this one is ZyXEL-specific rather than even attempting to be 
  Class 2 compliant.  FrontDoor has some nice integrated features, like the 
  ability to send mail to the system operator upon receipt of a FAX, internal 
  CallerID support, etc.
Cost:   ? (not free)

ReFax v1.20, fax software
  Receive fax for Mailer and BBS systems (replaces RCVFAX / ZFAX)
Jonny Bergdahl
now accepting credit card registrations
E-Mail: 2:204/500 (FidoNet)
Cost:   Shareware

VoiceConnect v2.2 (v2.3 soon) (distributed under the filename VC*.*)
  A complete answering machine software. It uses the most
  reliable algorithms for replaying and recording messages
  on ZyXELs ever seen. It uses the SoundBlaster <tm> and
  compatible sound boards for easy access to recorded voice files.
  Voice can be heard through the SoundBlaster while recording
  or replaying, too. Equipped with stand alone fax routines and
  a small bbs for data connects. Works with rockwell-modems, too.
Haukap Kommunikationstechnik / Thomas Haukap
Altstadtring 30
38118 Braunschweig
Voice:  +49-531-898578 (Mo-Fr 10-13 & 14-17 UTC+1)
Fax:    +49-531-898677 
BBS:    +49-531-898677 
E-Mail: Thomas Haukap (thaukap@zerebrm.hanse.de), 2:241/520 (FidoNet) 
Cost:   about US$20 (shareware)
bank account ! :    "Volksbank Hamburg Ost-West eG", Hamburg
                     BLZ 201 902 06, account no. 69 282 900

Voiceman v3.0b, voice/fax software
Michael Pflug
Neue Ramtelstrasse 66,
7250 Leonberg, Germany
E-Mail:  Michael Pflug 2:246/1009 (FidoNet)
Bank Account: Kreissparkasse Bvblingen
              bank code BLZ 603 501 30, account no. 3255072
Cost:   40 DM (shareware)  That's a fair price, I'd say.  People from abroad:
  you just have to make sure, that the above amount get's here. There
  is one thing to consider though the bank keeps 10 DM as commission.
  Cheques seem to be less a problem.

ZuTSR v2.31, voice software (distributed under the filename ZUT????.*)
  an add-on to existing FOSSIL drivers to add voice detection
  ability to almost any FOSSIL aware communications software
  (including FidoNet compatible mailer programs like
  FrontDoor <tm>, D'Bridge v1.53 <tm>, InterMail <tm>, ...)
  Using this program, it is possible to share one line for
  voice, mailbox/mailer and fax calls without the need for
  additional services like distinctive ring etc.
Kolja Waschk
Oevelgoenne 23
22605 Hamburg, Germany
Voice:  +49-40-8804056
Fax:    +49-40-8804056
BBS:    +49-40-8804056
E-Mail: Kolja Waschk (kawk@zerebrm.hanse.de), 2:240/5533 (FidoNet),
        16:100/2215 (ZyXELNet)
bank account:   "Hamburger Sparkasse", Hamburg
                bank code BLZ 200 505 50, account no. 1042 895 357
Cost:   About US$20 (Shareware)

Zfax v3.22, voice/fax software
 Has s/r fax, voice mail, faxback and internal terminal emulation features.
Cost:   *Free* (Comes with modem)

ZUtil F3 (distributed under the filename ZUTIL*.*)
  a small, command line driven utility to use the voice mode
  from within DOS batch files. Includes Record, Replay, DTMF
  reporting via Errorlevel, and functions to send commands
  to the modem directly and/or wait for result strings from
  the modem. Write your own, individual answering machine
  software, using the simple DOS batch language !
Kolja Waschk
Oevelgoenne 23
22605 Hamburg, Germany
Voice:  +49-40-8804056
Fax:    +49-40-8804056
BBS:    +49-40-8804056
E-Mail: Kolja Waschk (kawk@zerebrm.hanse.de), 2:240/5533 (FidoNet),
        16:100/2215 (ZyXELNet)
Cost:   *FREE*               

ZyVoice (aka Voice Wizard Pro v2.10), voice/data/fax software
ZyXEL, USA
Time:   Pacific Standard Time
Voice:  (714) 693-0808 (Sales; PST)
   or:  (800) 255-4101 (Works in Canada; PST)
FAX:    (714) 693-8811
Cost:   US$50


--------------------------------------------------------------------------------
Subject:  P.6  MS-Windows software that works with ZyXEL modems
--------------------------------------------------------------------------------

CMotion, voice/data/fax software
Cost:   US$99

DataFAX v4.01, Single User/Network Fax Software.
  DOS and MS Windows, dedicated and non-dedicated fax servers available
  The next version of DataFAX supports the voice capabilities of ZyXEL.
TRIO Information Systems
8601 Six Forks Road, Suite 615
Raleigh, NC 27615
Voice:  (800)880-4400
Voice:  (919)846-4990
Voice:  +46 8 570-305-90 (Europe)
Fax:    (919)846-4997
BBS:    (919)846-4987
E-Mail: Franklin S Schultz (fss@rock.concert.net)
Cost:   $129 SU / $375 and up Network

Eclipse Fax for Windows, fax software (?)

FaxMail for Windows v1.50, fax software
 Receives and sends faxes from Windows applications in the background or
 the foreground.
FTP from OAK.Oakland.Edu, and get the file FAX-V*.ZIP
ElectraSoft
3207 Carmel Valley Drive
Missouri City, TX  77459-3068
Voice:  (713)261-0307
Fax:    (713)499-5939,11,11,11,11
BBS:    (713)499-5939
E-Mail: Jon Kramer (Jon.Krahmer@f10000.n106.z1.fidonet.org),
        1:106/10000 [Fidonet]
Cost:   Shareware

SuperVoice v2.0, voice/fax software
Pacific Image Communications
919 South Fremont Ave., Suite 238
Alhambra, CA  91803
Time:   Pacific Standard Time
Voice:  (818) 457-8880
Fax:    (818) 457-8881

WinFax Pro v4.01, fax software
  Use the "Zero One Networking - ZyXEL U-1496E" driver.
Delrina Corp. / Delrina USA
6830 Via Del Oro, Suite 240
San Jose, CA 95119
Time:   Pacific Standard Time
Voice:  (800) 268-6082 (USA; Works in Canada)
   or:  (408) 363-2345
Fax:    (408) 363-2340
E-Mail: support@delrina.com

WinFax Pro v4.01, fax software
  Use the "Zero One Networking - ZyXEL U-1496E" driver.
Delrina Technology Inc. (World HQ)
895 Don Mills Road
500 - 2 Park Centre
Toronto, ONT
M3C 1W3
Time:   Eastern Standard Time
Voice:  (416) 441-3676 (World HQ & Canada)
        (416) 441-0921 (Tech support)
   or:  081 207 3163   (UK)
E-Mail: support@delrina.com

UltraFax v1.1, fax software
WordStar Atlanta
Technology Center
201 Alameda del Prado
Novato, CA 94949
Time:   Pacific Standard Time
Voice:  (800) 227-5609
Voice:  (415) 382-8000
Fax:    (415) 382-4952
Cost:   $119

ZyVoice (aka SuperVoice), voice/fax software
ZyXEL, USA
Time:   Pacific Standard Time
Voice:  (714) 693-0808 (Sales)
   or:  (800) 255-4101 (Works in Canada)
Fax:    (714) 693-8811
Cost:   US$50


--------------------------------------------------------------------------------
Subject:  P.7  Amiga software that works with ZyXEL modems
--------------------------------------------------------------------------------

AFax, fax software (shareware)

AVM v1.11a, voice software
  Shareware rewrite of ZyXEL Voice Mail for ZyXEL, LineLink, Dolphin, and
  Rockwell (beta for Rockwell) modems.  Works with with GPFax and AXsh
  (other fax programs or BBSes may be substituted with some ARexx 
  programming) to provide voice, fax, and data, all on one line.  Requires
  MUI 1.4 or greater (works on MUI 2.0).  Supports multiple lines (if you
  have multiple modems of the same type), multiple mailboxes, varying 
  "intro" messages remote message retrieval, etc
SoftWorx
Al Villarica
408 Arnold Ave.
Syracuse, NY 13210
E-Mail: Al Villarica (rvillari@cat.syr.edu)
Cost:   US$25 (Shareware, includes Scheduler)
        US$35 (Shareware, Scheduler and Programmer)

GPFax v2.30, fax software
GPSoft Development

MultiAnswer v1.0d, voice software
  "Voicemachine" software.  Reviewed in AmigaMagazin 9/93.  Demo copies are 
  available on the ZyXEL USA or ZyXEL Taiwan BBS under the filename 
  vmachine.lha.
BiBu-Soft
Peter Buchmann
Werderstr, 10d
13587 Berlin
Germany
Voice:  +49 30 4922124
Fax:    +49 30 4922124
Cost:   DM149

TrapFax

VoiXEL v1.01
  Answering machine/Fax/BBS software
File REQuestable from 1:250/102 [Fidonet] with the magic name of VOIXEL.

   
ZyXEL Voice Mail v1.25, voice software
  Works with or without GPFax as a answering machine.  Messages can be 
  retrieved remotely and locally.  Messages are played the modem's internal 
  speaker, through the telephone line, or through the Amiga's sound system.
  It also detects when a fax is calling up and lets GPFax handle the call.  
  The user interface is fully gadgetized and all the keyboard shortcuts work.
  Users can create their own voicemail system.
FTP from Amiga Aminet sites and get the file called zvm1.25.lha)
BuglesSoft
Al Villarica
104 Roney Lane, #22
Syracuse, NY 13210
E-Mail: Al Villarica (rvillari@cat.syr.edu)
Cost:   *FREE*


--------------------------------------------------------------------------------
Subject:  P.8  Atari ST/TT/Falcon software that works with ZyXEL modems
--------------------------------------------------------------------------------

Coma, fax software
  Distributed as a demo-version without full facilities of the registrated 
  version.
E-Mail: SiegfriedHartmann (Siegfried_Hartmann@DO.maus.ruhr.de)
Cost:   Commercial
   
CoNnect v2.46, voice/data software
  A powerful terminal program with flawless vt52, vt100, vt102, pc-ansi,
  vt220 emulation. It supports file transfer protocols like X-Modem, 
  Y-Modem and Z-Modem (8K Support) as well as CompuServe B/B+.  The new 
  comm ports of MSTE, TT and Falcon are supported up to 115.2kbps and 
  more. CoNnect has a built-in answering machine which is compatible with
  Zyxel and TIA TR29.2 Modems. CoNnect uses the ST-Speaker and where 
  possible the DMA Sound Hardware to play voice files on the computer. 
  Together with its script language it's possible to build very extensive 
  answering machine extensions like a voice mailbox. CoNnect is available
  in German and  English and comes with a large manual (more than 100 
  pages) in German or English.
Wolfgang Wander
Rudolf-Breitscheid-Str. 63a
D-22880 Wedel
E-Mail: Wolfgang Wander (Wolfgang_Wander@hh2.maus.de)
Cost:   DM 60 / US$ 50 Shareware

HackFax v1.10
  Full package that lets yousend/receive _and_ poll faxes. Viewing, printing 
  and including images in your faxes is obligatory.
Cost:   (?) Freeware

QFAX v1.5, fax software
  Prepares, sends, receives, views, and prints faxes.  Includes BBS/Fax 
  operation, conversion utilities to TIFF/GIF/PCX.  Source code also avail.
  from author.
  Runs on Atari ST software running SMS2 and Sinclair QL and comaptibles
  running QDOS operating Systems.
Jonathan Hudson
P.O. Box 2272
Ruwi 11, Sultanate of Oman
Time:   GMT +4
Voice:  +968 699407
Fax:    +968 699407
E-Mail: BBS on +968 699407 (Sat/Sun 18:00 - 03:00 GMT only) OR
        BBS on +44 202 600305, Fidonet 2:251/126.0 (E-mail Sysop of 4th
        Dimension BBS, Poole, England w/subject of QFAX.)
Cost:   Free

Starcall / Starfax / Starbox, data/fax/box software
   A combined System of Terminal-, FAX- and Box-program (?).
E-Mail: Ingo Linkweiler (Ingo_Linkweiler@DO.maus.ruhr.de)

TELE-Office
  Creates, sends, receives, polls, and cataloges faxes.  There is the 
  possibility to include pictures and external drivers e.g. from TEX [not 
  confirmed]
TKR GmbH & Co KGG
Stadtparkweg 2
D-24106 Kiel
Tel:    +49 431 337881
Fax:    +49 431 35984
BOX:    +49 431 336199
E-Mail: Helge Riis (Helge_Riis@KI.maus.de)

Voice v1.06
  Voice mailbox for CoNnect, can distinguish between voice/fax/data, remote
  configuration.
Cost:   (?) Shareware


--------------------------------------------------------------------------------
Subject:  P.9  ZyXEL modem vendors
--------------------------------------------------------------------------------

A more complete list is available via anonymous FTP.  It *should* be found
at rtfm.mit.edu in the /pub/usenet/news.answers/modems/ZyXEL directory.
Note that the ZyXEL Resalers [sic] FAQ is not in any way affiliated with
this FAQ.


North America
-------------


Canada
------

Arrabito Enterprises (Toronto, Ontario)
  Voice:  (416) 244-8195
  E-Mail: Robert Arrabito (robbie@kramden.phaedrav.on.ca)
  (e-mail correspondence preferred)

Iridium Systems (Vancouver, British Columbia)
  Voice:  (604) 322-6918
  E-Mail: Robert Wong Jr. (wrob@unixg.ubc.ca)
  (sales to Canada only)

OCOMP Optimizing Computers (Toronto, Ontario)
  Voice:  (416) 534-1508
  E-Mail: George Vande Bunte (gvb@telly.on.ca)

The Questor Project (Vancouver, British Columbia)
  Voice:  (604) 682-6659
  Fax:    (604) 682-6160 (FAX)
  BBS:    (604) 681-0670 (BBS)
  E-Mail: Steve Pershing (sp@questor.org)
  Questor will sell these modems in quantity

ventureTech (Toronto, Ontario)
  Voice:  (416) 658-9676
  Fax:    (416) 658-0327
  FaxBack:(416) 658-9676
  E-Mail: Paul Chvostek (pmc@vt.com)


United States
-------------

Black & White Software (Vermont)
  Voice:  (802) 496-8500
  E-Mail: Linda Rosen (nxfax@bandw.com)

Boston Computer (Massachusetts)
  Voice:  (617) 551-0166
  Contact:Sheri Hamel

CTS (Tennessee)
  Voice:  (615) 966-3667

Donovan Enterprises (California)
  Voice:  619-560-8137
  E-Mail: Brenda Donovan (brendad@dennet.esnet.com) or 1:202/701 [Fidonet]
  The only authorized ZyXEL dealer that is allowed to do SYSOP DEALS for
  N. America, S. America & Mexico.

Eagle Computing (Delaware)
  Voice:  (302) 657-9303
  E-Mail: Chris Pyrros (pyrros@cis.udel.edu)

Greenfield Trading & Distributors (New York)
  Voice:  (518) 271-2473
  E-Mail: Daniel Ling (danzig@eclipse.its.rpi.edu)

Kandy Shack (California)
  Voice:  (800) 40-KANDY (Toll free)
  Voice:  (714) 638-7308
  Fax:    (714) 636-6970
  BBS:    (714) 636-2667 (10 lines)
  E-Mail: Mike Bernstein (mike@kandy.com)
  Modem Price List: pricelst@kandy.com

MLM Computers and Consulting (New York)
  Voice:  (607) 256-2933
  Contact:Mark Margolis

Rockstone Electronics (San Jose, California, USA) 
  Voice: (408) 324-0800
  Fax:   (408) 324-0815
  BBS:   (408) 324-0806
  E-Mail:Tiger Zhao (tiger@netcom.com)
  FTP:   ftp.netcom.com  /pub/tiger/modems/
  - volume discounts available
  - rockstone.com is not functional at the moment

SI Services (Pensylvania)
  Voice:  (215) 675-7507
  Contact:Joshua Alder

Sondos Communications
  Voice:  (800) 955-5000
  Voice:  (800) 365-4223  
  Contact:Steve
  (Note: formerly known as Alpine Communications)

Sparco Communications Corporation (Mississippi)
  Voice:  (800) 840-8400 (Sales)
  Voice:  (601) 323-5360 (Customer Service)
  Fax:    (601) 324-6433
  E-Mail: Mubashir Cheema (sparco@sparco.com)
  E-Mail: mailserver@sparco.com, subject help (automated E-Mail)
  FTP:    sparco.com, /pub/sparco
  

WH Networks (California)
  Voice:  (415) 390-9316
  Fax:    (415) 964-2027
  E-Mail: Wolfgang Henke (wolfgang@netcom.com)
  FTP:    ftp.netcom.com /pub/wolfgang
  FTP:    ftp.rahul.net /pub/wolfgang
  Gopher: gopher metronet.com option 1 option 7

ZyXEL USA (California)
  Voice: (800) 255-4101 (Sales)
  Voice: (714) 693-0808
  E-Mail: Sales Dept. (sales@zyxel.com)

And, Barton F. Bruce (Barton.Bruce@camb.com) will sell them in quantity.



Europe
------

INFIMA (Czechoslovakia)
  Voice:  +42-2-7820034
  Fax:    +42-2-7822748
  BBS:    +42-2-3122741 (8 lines)
  E-Mail:  Petr Matousek (matu@infima.cz)

Perceptions (London/UK)
  Voice:  081-201 9818
  Fax:    081-458 0578
  FaxBack:081-458 0578
  
SCIENTIFIC Co (Poland)
  Voice:  (2) 643-6386
  Support:(22) 48-8989
  E-Mail: Krzysztof Pastor (pastor@ikp.atm.com.pl)

Terton Oy (Helsinki/Finland)
                        +358-0-757 2828 (TEL)
                        +358-0-757 3115 (FAX)
                        +358-0-662 282  (BBS)
                        +358-0-659 459  (BBS)
        Contact: Kari Tiihonen (kari.tiihonen@pcb.mpoli.fi),
                 2:220/666 [Fidonet]

UniTech Communication (Wigan/UK)
                        0942-209803 (Tel)
                        0942-209807 (Fax)



Asia
----

GPSoftware (Australia)
  Voice:  61-7-366-1402
  Fax:    61-7-366-1402
  E-Mail: Greg Perry (gregp@gpsoft.adsp.sub.org)

Meridian (Asia-Pacific) Ltd. (New Zealand)
  Voice:  0508-801-496  (Toll free - NZ only)
  Voice:  +64-9-309-3135
  Fax:    +64-9-309-3195
  Contact:Jonathan Drake
================================================================================


--------------------------------------------------------------------------------
Contributors to and/or sources of information 
--------------------------------------------------------------------------------

Mattias Ackers (d2matac@dtek.chalmers.se)
Tak Ariga (tak@doe.utoronto.ca)
Robert Arrabito (robert.arrabito@canrem.com)
Jorg Bauer (jb@doc.ic.ac.uk)
Manfred Becker (Manfred_Becker@bm.maus.de)
Soenke Behrens (behrenss@Informatik.TU-Muenchen.DE)
Mike Bernstein (mike@kandy.com)
Bjorn R. Bjornsson (brb@falcon.is)
David Bowerman (1:153/290) [Fidonet]
Alan Brown (alan@papaioea.manawatu.gen.nz)
Joseph H Buehler (jhpb@sarto.gaithersburg.md.us)
Oliver von Bueren (ovb@mpc.mhs.imp.com)
Andy Burgess (aab@cichlid.com)
Barney Campbell (bkc@maths.grace.cri.nz)
Paul Cantrell (paul@bosserv.bos.locus.com)
Terry Cassidy (cassidy@ranger.enet.dec.com)
Paul Chvostek (paulc@now.com)
David Coughran (drc@koko.csustan.edu)
Gert Doering (gert.doering@physik.tu-muenchen.de)
Adam Donnison (adam@shinto.saki.com.au)
Brenda Donovan (brendad@dennet.esnet.com)
Paul Dowling (dowling@fcs260c.ncifcrf.gov)
Henrik Vestergaard Draboel (hvd@terry.ping.dk)
Rudi van Drunen (rudi@igc.chem.ethz.ch)
Winston Edmond (wbe@psr.com)
Eelco H. Essenberg (essenber@dutiws.twi.tudelft.nl)
Peter_Gervai (p1f15n370z2@gw1-x203.uibk.ac.at)
Alessandro Di Giuseppe (1:167/281) [Fidonet]
Guido Glaus (glaus@zur01.enet.dec.com)
Achim Gorski (gorski@ph-cip.Uni-Koeln.DE)
Chris Gray (cgra@btma74.nohost.nodomain)
B.J. Guillot (st1r8@jetson.uh.edu), 1:106/400 [FidoNet]
Axel Habermann (kiwi@belly.in-berlin.de)
Thomas Haukap (thaukap@zerebrm.hanse.de)
Wolfgang Henke (wolfgang@netcom.com)
Fabian Hoppe (fabian@vivian.wupper.de)
Tyrone Horton (thorton@zyxel.com) [ZyXEL USA]
Michael Kuhl (mkuhl@newbridge.com)
Doug Kushner (71024.1643@CompuServe.COM)
Andrew Jackson (jackson@stc.nato.int)
Kurt Jaeger (Kurt.Jaeger@RUS.Uni-Stuttgart.DE)
Mark James (mrj@moria.cs.su.oz.au)
Rob Janssen (rob@pe1chl.ampr.org)
Tobias Joensson (tobias.joensson@tube.ct.se)
Richard Kampmann (Richard_Kampmann@un.maus.ruhr.de)
Teck-Chee Lee (sh7126146@ntuvax.ntu.ac.sg)
Thor Legvold (edmtl@edb.uib.no)
Dan Ling (danzig@eclipse.its.rpi.edu)
Sebastian Ludorf (s_ludorf@luberts.light.de)
Robert McKeever (mckeeveb@sfu.ca)
Rob MacKinnon (robmack@bsc.no)
Greg Mcclure (greg.mcclure@mwcsinc.muug.mb.ca)
James McOrmond (jam@jammys.ocunix.on.ca)
Petr Matousek (matu@infima.cz), 2:420/59 [FidoNet]
Saurabh Misra (smisra@eos.ncsu.edu)
Brent Mosbrook (brentm@zyxel.com) [ZyXEL USA]
Joe Moss (joe@morton.rain.com)
Anees S. Munshi (asm@eecg.toronto.edu)
Christer Olsson (co@clavicula.mednet.gu.se)
Thomas Olsson (thomas@vinga.trillium.se)
Carl Oppedahl (oppedahl@panix.com)
Heikki Ovaska (heikki.ovaska@compart.fi)
Chris Osicki (osicki@hasler.ascom.ch)
Mathias Pannike (Mathias_Pannike@of.maus.de)
George Pajari (pajari@Faximum.COM)
Krzysztof Pastor (pastor@ikp.atm.com.pl)
Paul Platt (pep@cypress.com)
Leighton P. Prabhu (ac425@freenet.carleton.ca)
Lars J Poulsen (lars@login.dkuug.dk)
Timothy Reed (treed@bmt.gun.com)
Walter Roberson (roberson@hamer.ibd.nrc.ca)
Klaus J. Rusch (k.rusch@ieee.org)
Milton Sagen (sagen@techbook.techbook.com) [Prometheus Products]
Ralf Schlatterbeck (ralf@vmars.tuwien.ac.at)
Don Schryver 1:267/149 [Fidonet]
Franklin S Schultz (fss@rock.concert.net)
Michael Schuster (schuster@panix.com)
Stefan T Schwingeler (sts@wits.ruhr.de)
Enrico Scotoni (2:301/520) [FidoNet]
Tor Rune Skoglund (torrunes@idt.unit.no)
Paul Slootman (paul@ahwau.ahold.nl)
Rod Smith (RSMITH@PEARL.TUFTS.EDU)
Monty Solomon (monty%roscom@think.com)
Jolly alias Patrick Stein (jolly@cis.uni-muenchen.de)
Jerry Sweet (jsweet@irvine.com)
Ed Sznyter (ews@Babel.COM)
Michal Szokolo (Michal.Szokolo@f19.n480.z2.fidonet.org)
Andrew Tannenbaum (trb@clam.com)
Tomas Tengling (ltt@cd.chalmers.se)
Lars Boegild Thomsen (2:234/60@fidonet.org)
Jussi Torhonen (hhsjto@hhomail.hhofi1.msgw.kone.com), 2:220/405 [FidoNet]
Al Villarica (rvillari@cat.syr.edu)
Jacques Virchaux (virchaux@sic.epfl.ch)
Kolja Waschk (kawk@zerebrm.hanse.de)
Wolfgang Wander (Wolfgang_Wander@hh2.maus.de)
Michael Chua Boon Wei (chuabw@singnet.com.sg)
John Weidman (dk139@cleveland.Freenet.Edu)
Matt White (Matt.White@usask.ca)
Stuart J. Winokur (swinokur@pbs.org)
David Yuill (david@nz.dialogic.com)
Dan Zerkle (zerkle@cs.ucdavis.edu)
--
Robert Wong Jr.
1921 East 61st Avenue, Vancouver, B.C., Canada, V5P 2K2, (604) 322-6918
wrob@unixg.ubc.ca
Keeper of the ZyXEL FAQ and Head of the UBC-NeXT Users Group
Standard disclaimers apply.

-- 
Robert W. Wong Jr.                     wrob@unixg.ubc.ca (ASCII only)
Crasher of Automated Banking Machines, Keeper of the ZyXEL modem FAQ,
University of British Columbia NeXT Users Group Leader and 
collector of titles.


