Talk:Integrated Services Digital Network

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[edit] Removed parts of article

Removed 4ESS, 5ESS and DMS-100, which are products and not protocols. Although there may be protocol variants used by these products.

Yaronf 22:11, Mar 3, 2004 (UTC)

[edit] Radio Stations

I dont know if this is correct, but I believe a lot of radio stations used ISDN for studio to studio connections, such as interviews, panel discussions, guests, etc... as well as some times hosts working from home via ISDN connection to the studio.

--Weyoun6 07:52, 23 Mar 2005 (UTC)

In the 1990s they did, where available, however these days they'd use far more convential internet systems, or occasionally private setups, or leased lines. --Kiand 00:43, 4 February 2006 (UTC)

me a a user of ISDN

[edit] Obselete?

Is it fair to declare ISDN dead yet?

Where I am (the UK) it certainly seems to be in all areas where ADSL is available. The main advantage of ADSL through ISDN (being able to directly connect to another ISDN user and have a dedicated line) has been rendered moot by the sheer speed advantage of ADSL. Even with contention and network lag, an 8M/500K ADSL is still going to leave a 128K ISDN line standing, and is much cheaper (again, I can only speak for the UK here)

I've been searching on google and I can't find any information on ISDN that isn't very outdated. Damburger 08:59, 7 July 2006 (UTC)

Whereas internet access as one of the major drivers for initial ISDN take-up has largely been removed, the other (connection of company PBXs to the public network) remains strong and is either still growing or only slowly eroding in the countries that I am aware of. JanCeuleers 12:29, 7 July 2006 (UTC)

ISDN is still used for videoconferencing. I am an installer and most of the systems we build have both ISDN and IP connections (both get used on a regular basis at most institutions.) I have heard people talk about ISDN becoming extinct for at least a decade now, but from my perspective this is not the case. ISDN is still a good way to make a videoconference call to another institution without extensive network configuration and without exposing the local data network.


Obselete for what?

  • For Internet Access? - Yes, DSL and cable modems are much better and faster.
  • As a replacement for POTS? That depends on the country! ISDN was never widespread in most parts of the world, with one exception: the German-speaking countries and especially Germany. A German who is speaking about the "öffentliches Telefonnetz" (the German term for public switched telephone network) will most likely mean "ISDN and POTS"! (Yes, ISDN first!) However, in fact only 30% of the German public circuit-switched telephone network are actually ISDN lines, but that's only because there are so many old fixed telephone lines. I worked for Hansenet, a German telecom, until May last year, and 94% of all new fixed phone lines from this company between January and May last year were ISDN, only the other 6% were POTS lines. The reason for this popularity of ISDN in Germany is very simple: It's the price policy of the German telecoms! For example, an ISDN line from Hansenet costs only 2€ more then a POTS line, but an ISDN line has the 2 B-channels, and at least 3 telephone numbers. And there is Arcor Telecom, the second largest German telecom, which never offered POTS. They prefer to offer Hardware with an integrated terminal adapter to their customers. ISDN is actually the native mode of the German public telephone network (since the network is fully digital since 1995), POTS-service needs additional hardware, either at the side of the customer (Arcor), or at the telephone exchange (Which , however, is always installed at the telephone exchange - with the exception of Arcor, of course.) Even the very most German ADSL lines are bundeled with ISDN, and not with POTS! I think ISDN is as much obselete as POTS! ;) 86.56.0.159 16:37, 12 August 2006 (UTC)
Being a German, I completely agree with what you wrote.
Here in Germany, you just order an ISDN line, buy a ISDN-DECT basestation with some handsets, and hand them out to your household members. Now everyone has its own phone number (MSN), up to two people can make calls at the same time, and the phone bill will be splitted by the MSNs. All at very decent prices (compared to POTS).
All this seems to be the result of the heavy ISDN marketing efforts Deutsche Telekom has made in the mid-1990s, making ISDN well-known and the equipment prices low.
--213.39.187.230 20:00, 3 December 2006 (UTC)

Here in Colombia, medium and big Enterprises uses ISDN very regulary, and not only for videoconferences.