Path: utzoo!attcan!uunet!microsoft!richs
From: richs@microsoft.UUCP (Rick SCHAUT)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Modems, bulletin boards, and 2400 baud
Message-ID: <55724@microsoft.UUCP>
Date: 9 Jul 90 19:57:29 GMT
References: <00939602.BF4A8760@QMD.PHY.NIST.GOV>
Reply-To: richs@microsoft.UUCP (Rick SCHAUT)
Organization: Microsoft Corp., Redmond WA
Lines: 26

In article <00939602.BF4A8760@QMD.PHY.NIST.GOV> msd@enh.nist.gov (M. Scott Dewey) writes:
>I'm having a small problem when I connect with bulletin boards that
>advertise running at baud rates of 300/1200/2400.  First I set my Everex
>Evercom 24 2400 BPS internal modem to 2400 baud, then I make the
>connection, and finally I find that the connection has been established
>with the bulletin board at 1200 baud (I have to reset the rate on my modem
>to 1200 baud to continue)!  Does anyone have any idea why this might
>happen?  Is there a trick to connecting at 2400 baud?  I have no problem
>connecting at 2400 baud to numbers that are exclusively 2400 baud.

Sounds like your modem has auto baud detect turned on.  With that on, the
modem will detect the startup baud rate of the answering modem and match
itself to that baud rate.  The modems on multibaud BBS's start up at 1200
baud, and, if the calling modem does not answer back after a few seconds,
kick up to 2400 baud.  Hence, your connections are established at 1200
baud.  Boards that are exclusively 2400 baud, however, start up at 2400
baud, and that's why those connections are fine.

Check the documentation for your communications software.  Quite often there
is a toggle that allows you to turn auto baud detection on and off.

-- 
Rick Schaut
...{uunet | uw-beaver}!microsoft!richs

I don't do Windows! (...yet)