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From: rmg@ultra.com (Rich Geiger)
Newsgroups: comp.dcom.modems
Subject: Re: Telebit T2500 problem with internal 2400 modem
Keywords: T2500, internal 2400 do not work together
Message-ID: <1990Sep7.152529.18088@ultra.com>
Date: 7 Sep 90 15:25:29 GMT
References: <9197@uhccux.uhcc.Hawaii.Edu> <9209@uhccux.uhcc.Hawaii.Edu>
Distribution: na
Organization: Ultra Network Technologies
Lines: 32

In <9209@uhccux.uhcc.Hawaii.Edu> todd@uhccux.uhcc.Hawaii.Edu (Todd
Ogasawara) writes:
>In article <9197@uhccux.uhcc.Hawaii.Edu> todd@uhccux.uhcc.Hawaii.Edu
>(Todd Ogasawara) writes:
>>Has anyone else had problems dialing into a Telebit T2500 with PC internal
>>2400 baud modems?

>Again, this seems to be unique to the internal 2400 modems from
>Toshiba and Everex. External 2400 and 1200bps modems seem to work
>fine with the T2500.

>Telebit is looking into this...todd

A user at our site also had similar problems coming into our T2500
with an externel Everex Evercom 24+. He contacted Everex, who sent
them an updated PROM which fixed the problem. I don't know whether
this can be taken as evidence that it is Everex (rather than Telebit)
who was out of spec with regard to the CCIT standard dictating how
connect speed negotiaion is supposed to be done.

We have also seen a couple of other 2400baud modems that can't handle
connecting to Telebits reliably.

I am keeping a list for users at out site, who have a variety of
modems they use to call our T2500's with, of what is known to work
properly and what isn't. I will post it in a separate posting, in case
it's useful to anybody else out there.

-- 
 - Rich Geiger
Ultra Network Technologies / 101 Daggett Drive / San Jose CA 95134
rmg@ultra.com  ...!ames!ultra!rmg  (408) 922-0100 [w]  (408) 739-7911 [h]