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Path: utzoo!mnetor!seismo!lll-crg!rutgers!clyde!cuae2!ihnp4!ihlpf!spear
From: spear@ihlpf.UUCP (Spearman)
Newsgroups: comp.dcom.modems
Subject: Re: An interesting modem problem
Message-ID: <851@ihlpf.UUCP>
Date: Thu, 13-Nov-86 13:53:05 EST
Article-I.D.: ihlpf.851
Posted: Thu Nov 13 13:53:05 1986
Date-Received: Sun, 16-Nov-86 00:16:21 EST
References: <128@gaia.UUCP> <133@gaia.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 16

> Some more possibly useful information on the ~r and }i modem problem:
> .....  The garbage chars are inserted every 10-40
> seconds more or less, thruout a session.  Some connections are great,
> some are terrible, a few are in between; a given session is pretty much
> the same from start to finish.
Sounds kind of like a line balance problem.  If your lines between
the 2 modems in question are particularly short whereas most of your
other calls are farther away, this can come into play.  Some modems
have a settable dip switch to compensate for this.

There also do seem to be 'marginal' conditions in 1200 baud protocol
where two modems can be a little off on timing in opposite directions
and can talk fine with modems that are more 'dead on', but have trouble
with each other.

Steve Spearman  ihnp4!ihlpf!spear