Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!blars!blarson
From: blarson@blars
Newsgroups: comp.dcom.modems
Subject: Re: Practical Peripherals 9600
Message-ID: <144@blars>
Date: 9 Dec 90 20:35:04 GMT
References: <1990Dec9.054531.20417@mnemosyne.cs.du.edu>
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In article <1990Dec9.054531.20417@mnemosyne.cs.du.edu> aburt@mnemosyne.cs.du.edu (Andrew Burt) writes:
>(The only "problem" that still existed was that withOUT at&q0,
>the feature negotiations confused our autobauding getty; understandable.

The garbage characters MNP sends when negociating are known to cause
problems on some non-mnp modems on some systems.  The only solution is
to turn of MNP before calling such a system.  USC's v.22bis (2400
baud) modem pool is one example of a place that cannot be called
successfully without diabling MNP.  (The garbage fools the autobaud on
the data PBX which eventually times out and drops DTR.)  Fortunatly,
the V.32 modem pool does support MNP most of the time.

V.42 was designed to make this less likely to happen.  Since all V.42
modems I use fall back to MNP if V.42 negociation is unsucessful, this
attempt doesn't make any differnce in practice.  

-- 
blarson@usc.edu
		C news and rn for os9/68k!
-- 
Bob Larson (blars)	blarson@usc.edu			usc!blarson
	Hiding differences does not make them go away.  Accepting
	differences makes them unimportant.