Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!samsung!munnari.oz.au!uhccux!todd
From: todd@uhccux.uhcc.Hawaii.Edu (Todd Ogasawara)
Newsgroups: comp.dcom.modems
Subject: Re: T2500 compatibility with various modems - list & notes
Message-ID: <9314@uhccux.uhcc.Hawaii.Edu>
Date: 11 Sep 90 05:43:15 GMT
References: <1990Sep10.164452.20396@ultra.com>
Reply-To: todd@uhccux.UUCP (Todd Ogasawara)
Organization: University of Hawaii
Lines: 54

In article <1990Sep10.164452.20396@ultra.com> rmg@ultra.com writes:
>Hayes Smartmodem 1200
>  - seems to work fine at 300/1200/2400.
				    ^^^^ :-)
I have tried an ancient (1983 or 84) Hayes 1200 with two T2500 modems with
no problems (other than the fact that the Hayes 1200 is extremely noisy).

>Everex Evercom 24/24E
>  - Assumption: "Evercom 24" is an internal modem; "24E" is the external
>    version of the same thing; if anyone knows this to be a fact, please
>    confirm.
>  - This modem seems to work fine at 300/1200/2400.

Have not tried the internal modem. Can verify that the external modem works
fine though. In fact, it works better than the newer 24+E with the T2500.

>Everex Evercom 24+
>  - Guess: "Evercom 24+" is an internal modem for the IBM PC and clones;
>    there is also an external model called "Evercom 24+E" (or some such).
>    If anyone knows this to be a fact or not, please confirm or deny.
>  - Seems to work fine at 300/1200.

Have not been able to use the internal 24+ with a T2500 at 2400baud. It
will, however, connect ok at 1200 baud. The external 24+E only works if you
"deafen" it for a few seconds by placing pauses after the phone number.
E.g., ATDT 123-4567,,,,

>Toshiba T5100 (PC internal)
>  - We have reports from the Net that this modem has problems connecting
>    with T2500s at 2400 baud.  There are also reports from the Net that
>    this modem has trouble connecting with other V.32 modems.

I was one of those reporting this problem. I verified it with Telebit last
week. No further comments from them since that verification though. FYI:
the modem does work at 1200 baud. Like the internal Everex 24+, it works at
1200 baud and does not at 2400.

>  - A posting from the Net indicates that Telebit has reproduced this
>    problem. A reported fix is to force the Telebit to lock its interface
>    at 2400 baud ((S50=3, S51=2); we cannot do this with our modems,
>    however, as it would preclude use at other speeds.

Right. I was the one that reported that. I said the same thing about making
the T2500 useless to me to Telebit. They, of course, conceeded that point.

Has anyone successfully dialed into a T2500 with a US Robotics HST modem? I
tried the other day and it kept connecting at 2400baud. This was despite
the fact that I hard wired both ends to 9600.

-- 
Todd Ogasawara, U. of Hawaii
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