telephone bandwidth (was Re: ASR-33 Data Format?)

From: Eric Smith <eric_at_brouhaha.com>
Date: Thu Apr 1 17:01:02 1999

Hans wrote:
> Shure, you can still get an analouge line, but this is only analogue
> until the next switch - sometimes they even insall an ISDN-NT in your
> basement with an integrated a/b adaptor to fullfill the request.

Well, they do that here also. But the point is that the service that they
are selling to the customer is still POTS. The fact that the line goes
digital somewhere inside the "network cloud" is irrelevant. If you want
to send modem signals through it, they get bandlimited to 300-3300 Hz.

> But
> nowadays 1TR6 is only available on special request for compatibility
> issues (Sad, since it had some realy neat features).

Yes, we have the same problem here with AT&T 5ESS Custom, which was much
nicer than Bellcore National ISDN 1 (NI1).
Received on Thu Apr 01 1999 - 17:01:02 BST