Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!uunet!mcsun!unido!tub!tmpmbx!geminix!gemini
From: gemini@geminix.in-berlin.de (Uwe Doering)
Newsgroups: comp.dcom.modems
Subject: Re: Why won't my T2500 do V.32?
Message-ID: <6BPJQCV@geminix.in-berlin.de>
Date: 22 Sep 90 21:04:21 GMT
References: <26F8FEE1.5D3C@tct.uucp>
Organization: Private UNIX Site
Lines: 34

chip@tct.uucp (Chip Salzenberg) writes:

>Here at TCT we have two T2500s.  We love them.  PEP mode is just what
>the doctor ordered for remote demos on our development machine.
>
>However, there is trouble in paradise...
>
>I've been trying to make our T2500 answer with V.32 tones so we can
>dial in with UDS and Hayes V.32 modems.  So far I have been
>unsuccessful.  Nothing I try -- not even "AT~F3" -- makes the T2500
>generate V.32 answer tones.  As an experiment, I tried to make it
>answer with V.32 only, using "AT S50=6 S94=0".  When I called it, it
>went off hook and then back on hook, without uttering a peep!

Two friends of me had the same problem (at different times). There
is a piggy-back board on the modem main board that is responsible
for V.32 and V22(bis). Obviously, this piggy-back board likes to
jump off its connector pins if the vibrations during shipment are
strong enough. You can check this with your modem by simply shaking
it. If there is a rattle inside, you've found the problem. :-)
Simply put the board back on its two connector rows. Now it should
work.

The interesting thing is that the modem works perfectly without
the V.32 board as long as you stick with PEP mode.

Telebit, do you read this? It would be a good idea to fasten this
piggy-back board somehow.

     Uwe
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