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From: lstowell@pyrnova.pyramid.com (Lon Stowell)
Newsgroups: comp.dcom.modems
Subject: Re: Using High Speed Modems
Message-ID: <156581@pyramid.pyramid.com>
Date: 24 May 91 18:18:43 GMT
Sender: daemon@pyramid.pyramid.com
Reply-To: lstowell@pyrnova.pyramid.com (Lon Stowell)
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Organization: Pyramid Technology Corp., Mountain View, CA
Lines: 20

In article <1991May24.095529.101@cynic.wimsey.bc.ca> curt@cynic.wimsey.bc.ca (Curt Sampson) writes:
>
>Wrongo.  NO V.22bis or V.32 modem, unless it includes V.42 or MNP
>levels 3 and above, is stripping start and stop bits.  (And they do
>not need to be configured for bits/character or parity unless they are
>using V.42 or MNP levels 3 and above).  MNP3, MNP4 and V.42 all strip
>start and stop bits.
>
   
   As either Toby or some other modem guru pointed out in
   private email, the CCITT compliant modems strip only the stop
   bits...and in V.22bis are not to strip more than 1 in 8.  

   The method is documented in V.22bis, and is unrelated to
   data compression.   

   I know of no 2400 baud or above full dux dial modem that
   doesn't need to know about character length and rate.
   Whether it is explicitly configured or auto-configured...the
   AT sequence makes a pretty decent autobaud...