Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!netcom!gandrews
From: gandrews@netcom.COM (Greg Andrews)
Newsgroups: comp.dcom.modems
Subject: Re: T2500 at Bell 103 modulation to Compuserve
Summary: Try disabling MNP and V.42.
Message-ID: <1991Mar19.194412.18153@netcom.COM>
Date: 19 Mar 91 19:44:12 GMT
References: <10@peanut.UUCP>
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
Lines: 28

In article <10@peanut.UUCP> dts@peanut.UUCP (Daniel Senie) writes:
>I've been trying to dial into Compuserve at 300 BPS, due to better rates.
>For certain uses on CSERVE, I find 300 is actually fast enough, since I 
>can read as fast as the characters come out that way.
>
>The problem I'm having is that with recent revs of the T2500 ROMs (6.01 and
>7.0) I have been unable to complete Bell 103 calls. The modems answer and
>think they're happy, but no amount of playing with baud rates/parity/etc.
>will make anything other than garbage come out.
>

Those are the versions of firmware that included V.42 as well as MNP.
Try turning off both error correction types (S95=0 S97=0 S106=0) and
see what happens.

I assume you're setting S50=1 to get 300 bps?  As long as your modem has
S90=0 (the default), you're getting a Bell 103 connection.

Without knowing other details (comm software, other register settings,
etc.), that's the best I can do.  Could your comm software be unable
to recognize the 300 bps connect message?


-- 
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|  Greg Andrews   |       UUCP: {apple,amdahl,claris}!netcom!gandrews    |
|                 |   Internet: gandrews@netcom.COM                      |
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