Deutsche Telekom termination of T-ISDN Mehrgeraeteanschluss Standard

Jan-Hinrich Fessel oskar at fessel.org
Thu Nov 25 20:26:40 UTC 2010


Am 25.11.2010 um 12:08 schrieb Cologne Chip AG:

> Dear Julian,
> 
> it is a misinterpretation of the letter that you have received, that Deutsche Telekom (DT) intends to terminate the ISDN service.

This is correct.  DT is not going to drop ISDN in the near future.  But, depending on your area, you may sooner or later get voice substituted by VOIP technology.  This may not affect your ISDN b channels, but you will not be able to use the d channel for anything else than call setup and termination.  Especially, if you are currently using X.31 over the d channel, this will cease to work.

If you go for call&surf, make sure you get it with ISDN, not the cheaper ones with VOIP or POTS.

Cheers
	Oskar



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