Archive-name: isdn-faq/part1
Last-modified: $Date: 1995/07/01 18:40:31 $
Version: $Revision: 4.3 $


1.01) Summary of changes from the last version

  - Correction Tone Commander's home page URL (
  - Add ISDN*tek product info (
  - Add ZyXEL product info (
  - Add U.S. Robotics product info (
  - Add Symplex Communications product info (
  - Add Network Communication Corp product info (,,
  - Removed references to obsolescent deployment data (
  - Add reference to videoconferencing FAQ (
  - Add Australia Telstra contact info (
  - Update Advanced Computer Communications info (,
  - Update Tele-Path Industries info (
  - Input on many subjects "W. Cody Anderson" <>
  - Many typo fixes (
  - Info on getting ISDN in South Africa (
  - Add web page pointer for IBM Waverunner (many sources)
  - Fix location of gopher server for bonding info (
  - Add Ascom Zelcom AG info (
  - Update SCii info (
  - Ameritech WWW info (
  - Info on Bay Networks (
  - Update on Siemens info (
  - Stollmann WWW info (vgrote@ranahh.hanse.DE)
  - Update Hermstedt info (
  - Add Dassault info (
  - Newer Stollmann info (
  - Update Trend e-mail address (


1.02) comp.dcom.isdn Frequently Asked Questions - Introduction

These questions and answers have (almost entirely) been extracted from
comp.dcom.isdn.  Please post any comments or new material that you
have, or email them to the current FAQ editor,
In particular, the vendor equipment chart is incomplete.  If you want
to share vendor equipment info, just cut and paste the headers from the
chart below and create a new entry for the new information, and send it
to me.

This FAQ consists almost entirely of information posted to this group.
There are a fair number of holes and there may be some outdated
information in it.  There is no claim of completeness or guarantee of
accuracy of any kind, or no warranties for merchantability or fitness
for a particular purpose.  If you have some useful information that you
would like to share, email it to me.  My goal is to have the FAQ mirror
the information provided to the newsgroup itself.  The next-to-last
section of this FAQ gives references that provide much more information
than this FAQ does.

This FAQ is posted biweekly to the comp.dcom.isdn news group with an
expiration period of two weeks.  This FAQ is available via anonymous ftp
to host, in the directory /pub/usenet/news.answers/isdn-faq.
It's also accessible via the e-mail server -- send the command
"send usenet/news.answers/isdn-faq/*" (without the quotes) in the body
of a e-mail message to  It is also available
via any other site that shadows news.answers.  Some of these sites

    North America:                     /usenet/news.answers
    Europe:           /pub/FAQ
    Asia:                /USENET/FAQ

If you have Web access, I recommend you access Dan Kegel's ISDN Web
page at, which has even more ISDN
information and a pointer to a Web-accessible copy of this ISDN FAQ.

I would like to thank Sean Welch for creating the previous edition
of the FAQ.  His work is still responsible for the majority of the
information gathered here.  I hope to continue the fine example that
Sean has set.


1.03) Table of Contents

Section 1:

Subject: 1.01) Summary of changes from the last version
Subject: 1.02) comp.dcom.isdn Frequently Asked Questions - Introduction
Subject: 1.03) Table of Contents
Subject: 1.04) To Do List
Subject: 1.05) Who do I have to thank for this list?

Section 2:

Subject: 2.01) What is ISDN?
Subject: 2.02) What does an ISDN network connection look like?
Subject: 2.03) What will Basic Rate (2B+D) ISDN look like in my house/office?
Subject: 2.04) What is a NT1?  Who sells them?
Subject: 2.05) Can the existing local loop lines be reused for ISDN?
Subject: 2.06) How does this compare to regular phone lines?
Subject: 2.07) Is caller ID available on ISDN?
Subject: 2.08) What do I get above and beyond plain old telephone service?
Subject: 2.09) What do ISDN phones cost?
Subject: 2.10) Can you use existing telephone equipment with the voice portion?
Subject: 2.11) What is National ISDN?
Subject: 2.12) What is the NIUF?
Subject: 2.13) What is ATM?
Subject: 2.14) What is B-ISDN?
Subject: 2.15) What is BONDING?
Subject: 2.16) Data Encapsulation for IP over ISDN
Subject: 2.17) Full Motion Video over ISDN
Subject: 2.18) What is a SPID? How come my ISDN device won't work without one?
Subject: 2.19) Will ISDN terminal equipment that works in one country
               work properly when it is installed in another country?
Subject: 2.20) Will ISDN terminal equipment that works with one vendor's ISDN
               switch work properly when used with another vendor's switch?
Subject: 2.21) Do different manufacturers' Terminal Adaptors interoperate when
               used asynchronously?
Subject: 2.22) Why do I get only about 19.2k throughput from my TA?
Subject: 2.23) How long should call setup take when using a TA?

Section 3:

Subject: 3.01) How do I find out about getting ISDN in my area?

Section 4:

Subject: 4.01) Where can I find what all of these acronyms mean?
Subject: 4.02) What are the relevant standards?
Subject: 4.03) Where can I read more?
Subject: 4.04) Can I get on-line National ISDN information from Bellcore?

Section 5:

Subject: 5.01) Who is shipping what?
Subject: 5.02) How about that SPARCstation 10?
Subject: 5.03) How about that IBM Waverunner?
Subject: 5.04) How about that SGI?
Subject: 5.05) How about that HP?


1.04) To Do List

    Questions for which I have not yet put together an answer, but for which I
    am accepting suggestions:

     a) What programming API's are useful for creating ISDN applications?
        (e.g. Sun, Microsoft TAPI, NIUF ASI, ETSI(?), CAPI(?), more(?))
        What are their strengths and weaknesses?


1.05) Who do I have to thank for this list?

Lots of people, in one way or another. (Tom Frei) (W. Cody Anderson)
CLAUSS1@AppleLink.Apple.COM (Clauss, Chris) (Dave Yost) (Ed Carter) (Eric Boll) (Gary Krall)
Helge.Oldach@Stollmann.DE (Helge Oldach)
IRENE__CROSBY_at_Kanata-Software-1@ccmail.Mitel.COM (Jim Rees) (Neville Walker) (Peter M. Weiss) (Pierre Vidalenc) (Mathias Gaertner) (Alan Guggenheim) (Allard Van der Horst) (Bill Anderson) (Alan Palmer Stephens) (Art Berggreen) (Arthur Marsh) (Albert Willis) (Pat D'Innocenzo) (Bert Davenport) (Gerhard Bernot) (Mike Beyries) (Ben Harrell) (sohl, william h) (Bob Blackshaw)
blsouth! (Michael Klein) (Bob Larribeau) (Bob Clemmons) (Brent Mosbrook)
cabo@Informatik.Uni-Bremen.DE (Carsten) (Brad Carlson)
cherkus@UniMaster.COM (Dave Cherkus) (Christian Luehrs)
cliff@Berkeley.EDU (Cliff Frost) (Craig Partridge) (Chuck Storry) (Curt Welch) (Cyrus Azar) (Dave Adams) (Dag Johansen Esq.) (Daniel R. Kegel) (David L. Markowitz) (David E. Martin) (Dror Kessler) (Dwight Ernest)
earle@poseur.JPL.NASA.GOV (Greg Earle - Sun JPL on-site Software Support) (Winston Seah) (Eric A. Litman) (Torsten Lif)
ews@Babel.COM (Ed Sznyter) (Jim Fenton) (Gary Martin) (Giles Heron) (Greg Larson) (Fred R. Goldstein) (Ki Suk Hahn) (Helge Stenstrom) (Chip Sharp) (Gerald L. Hopkins) (Brad Huntting) (James - The Keeper) (Jeff Wiltshire) (Jerry Scharf) (Jeffrey Fritz) (Jamie Honan) (Jonathan I. Kamens)
jms@romana.Tymnet.COM (Joe Smith) (Rob Jordan) (Jon Steer) (Jennifer Steinberg) (Jim Breen)
kessler@Eng.Sun.COM (Tom Kessler) (Ketil Albertsen,TIH) (Kevin Schneider) (Kevin Davis)
kevinc@aspect.UUCP (Kevin Collins)
keyman@Eng.Sun.COM (Dave Evans) (Roland Knapp) (Kevin Paul Herbert) (Kevin J. Rowett) (Gary C. Kessler) (Mark Linimon) (Laurence V. Marks)
marc@Destek.NET (Marc Evans) (Marco S Hyman) (Marjorie Panditji) (Mark Anderson) (Mike Sanders) (Mike Souryal) (Michael McCalpin) (Mike Smalley) () (Ming Sun) (Juergen Ernst Guenther) (Michael Wang) (Clayton Nash) (Oliver Jones) (Carl Oppedahl) (Oliver Steudler) (Peter Graw) (Paul Antoine) (Peter Ilieve) (Peter Macaulay) (Patton M. Turner) (Rachel Willmer) (Randolph A. Sisto) (Rob Davies) (Russell Lang) (Rick Pitz) (Robert W. O'Dell H3-463) (Wade T. Rogers) (Ronnie B. Kon) (Ron Sorenson) (Nathan Lane) (Sanjay Manandhar) (Scott Colwell) (Scott Turner)
sklower@toe.CS.Berkeley.EDU (Keith Sklower) (winston (w.l.) sorfleet) (Joe Ilacqua) (stamp,scott) (Steve Hill) (Terence Milbourn) (Tilman Schmidt) (Toby Nixon) (Andrew Scherpbier) (Uwe Huebner) (Vance Shipley) (Al Varney)
vgrote@ranahh.hanse.DE (Volkmar Grote) (David Lesher) (Sven De Kerpel)
welch@watchtower.Berkeley.EDU (Sean N. Welch) (William Martin) (Wayne Mesard) (William Stallings) (Andreas Frackowiak)
Dave Cherkus ----- UniMaster, Inc. ----- Contract Software Development
Specialties: UNIX TCP/IP X OSF/1 AlphaAXP AIX RS/6000 Performance ISDN
Email: cherkus@UniMaster.COM  Tel: (603) 888-8308  Fax: (603) 888-4598
The Internet runs on its programmers, and programmers run on coffee!!!