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From: brian@sdcsvax.UCSD.EDU (Brian Kantor)
Newsgroups: comp.dcom.modems
Subject: Re: 2400 baud modems
Message-ID: <2442@sdcsvax.UCSD.EDU>
Date: Sat, 10-Jan-87 11:00:23 EST
Article-I.D.: sdcsvax.2442
Posted: Sat Jan 10 11:00:23 1987
Date-Received: Sat, 10-Jan-87 22:54:10 EST
References: <122@osupyr.UUCP> <389@csustan.UUCP>
Reply-To: brian@sdcsvax.UCSD.EDU (Brian Kantor)
Organization: UCSD wombat breeding society
Lines: 22
Keywords: 2400 baud modem external

I'm typing this using a USR Courier - whilst I'm waiting for my
Racal-Vadic to arrive.  It has the 243 firmware upgrade.

The 243 revision prom to the USR Courier did improve its performance in
the presence of phone line irregularities - you can now use it on dialup
lines most of the time.

It did NOT cure the problem that the Courier uses the Bell 2400
handshake instead of the v.22bis handshake.  There are a few modems out
there which simply do not accomodate the earlier Bell standard and will
therefore refuse to connect to the Courier.  (We have several Rixon
modems that exhibit this refusal, and the early versions of the Anchor
Lightning 2400 did too.)  Luckily, most current 2400bps modems will
accomodate both the Bell and V.22bis handshake, so you may never see the
problem.

Caveat Emptor.  Test it out.  See if you can get some sort of return
privileges if it isn't what you can use.  Sure is a nice price!

	Brian Kantor	UCSD Office of Academic Computing
			Academic Network Operations Group  
			UCSD B-028, La Jolla, CA 92093 USA