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TUCoPS :: Phreaking Technical System Info :: isdn1.txt


1.01) Summary of changes from the last version

  - MS Telematica vendor info from
  - alt.internet.servicess to posting list, per request of (Andy Burgess)
  - Info about getting the NIUF ASI ISDN programming interface
    documentation, courtesy of (Vance Shipley)
  - Pointer to ISDN Web page from 
    (Daniel R. Kegel)
  - MERGE Technologies Group vendor info from
  - Vendor info for Apple-oriented ISDN solutions from
    CLAUSS1@AppleLink.Apple.COM (Clauss, Chris)
  - Touched up discription of ISDN availability in intro section,
    input from Tilman Schmidt <>
  - A whole new section on SGI, courtesy of 
    (Michael Wang)
  - Update for Adtran info courtesy of Kevin Schneider <>
  - CSI vendor info courtesy of (Mike Beyries)
  - Info about getting ISDN in Canada from Peter Graw <>
  - Updated NT-1 info from (Oliver Jones)
  - TPI vendor info and general FAQ advise from 
    (Mark Linimon)
  - diehl info update from (Uwe Huebner)
  - Info about "The ISDN Literacy Book" from
  - HP product info from 
    (Pierre Vidalenc)
  - Corrected info about getting the faq via e-mail
  - Intel info from (Dag Johansen Esq.) and (Marjorie Panditji)
  - Vendor info about Conware GmbH from (Roland Knapp)
  - Gandalf update from (Jennifer Steinberg)
  - Numerous corrections of e-mail addresses, typos, etc.

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There are a fair number of holes and there may be some outdated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?
Subject: 5.06) How about that Intel RemoteExpress?


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. (Dave Yost)
CLAUSS1@AppleLink.Apple.COM (Clauss, Chris) (Eric Boll)
Helge.Oldach@Stollmann.DE (Helge Oldach) (Jim Rees)
KUMQUAT@SMCVAX.SMCVT.EDU (Gary C. Kessler) (Peter M. Weiss) (Pierre Vidalenc) (Mathias Gaertner) (Alan Palmer Stephens) (Art Berggreen) (Albert Willis) (Gerhard Bernot) (Mike Beyries) (Ben Harrell)
blsouth! (Michael Klein) (Bob Larribeau) (Bob Clemmons)
cabo@Informatik.Uni-Bremen.DE (Carsten)
cherkus@UniMaster.COM (Dave Cherkus)
cliff@Berkeley.EDU (Cliff Frost) (Craig Partridge) (Chuck Storry) (Curt Welch) (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) (Brad Huntting) (James - The Keeper) (Jerry Scharf) (Jeffrey Fritz) (Jamie Honan) (Jonathan I. Kamens)
jms@romana.Tymnet.COM (Joe Smith) (Rob Jordan) (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) (Kevin Paul Herbert) (Kevin J. Rowett) (Roland Knapp) (Mark Linimon) (Laurence V. Marks) (Marjorie Panditji) (Marco S Hyman)
marc@Destek.NET (Marc Evans) (Mark Anderson) (Mike Sanders) (Mike Souryal) (Ming Sun) () (Juergen Ernst Guenther) (Michael Wang) (Oliver Jones) (Carl Oppedahl) (Gerald L. Hopkins) (Peter Graw) (Paul Antoine) (Peter Ilieve) (Patton M. Turner) (Rachel Willmer) (Randolph A. Sisto) (Rob Davies) (Russell Lang) (Wade T. Rogers) (Ronnie B. Kon) (Sanjay Manandhar) (Scott Colwell) (Scott Turner) 
sklower@toe.CS.Berkeley.EDU (Keith Sklower) (winston (w.l.) sorfleet) (Joe Ilacqua) (stamp,scott) (Tilman Schmidt) (Toby Nixon) (Andrew Scherpbier) (Uwe Huebner) (Al Varney) (Vance Shipley) (Sven De Kerpel) (David Lesher)
welch@watchtower.Berkeley.EDU (Sean N. Welch) (sohl,william h) (William Martin) (Andreas Frackowiak)

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