Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mixcom!xeee02
From: xeee02@mixcom.COM (Dean A. Roth)
Newsgroups: comp.dcom.modems
Subject: V.32 wproblems: modems not talking
Keywords: PPI 9600SA vs. USR Dual Std. vs. T1600
Message-ID: <665@mixcom.COM>
Date: 30 Apr 91 02:37:28 GMT
Organization: Milwaukee Information eXchange (Public access Usenet, Email)
Lines: 31


The Situation
-------------
I have a T1600 and Dual Std. answering calls on
a UNIX box.  I call the system using a Practical
Peripherals 9600SA.  All modems support V.42bis
and are configured for it.


The Problems
------------
The 9600SA and T1600 will not make a V.42 or V.42bis
connection, but will make a MNP 5 connection.  Both
will make a V.42bis connection with other modems - just
not each other.

If I use the T1600 to call the USR, or vice versa, I get
a V.422bis connection.  Eventually, though, one of the modems
locks (nothing comes or goes).  This behavior has only 
been observed between these two modems.

I have called the T1600 with other modems, with and without
V.42bis, and everything works O.K.  Therefore I conclude
something is wrong between the two.  Has anyone else observed
this?

Any answers?  Do I just need ROM updates?  The 9600SA
has version 1.29. The T1600 has LA1.00.  I spoke with
USR - my modem is 1 ROM release behind.
-- 
Dean Roth           deanr@mixcom.com