Path: utzoo!attcan!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!usc!snorkelwacker!spdcc!xylogics!world!madd
From: madd@world.std.com (jim frost)
Newsgroups: comp.sys.ibm.pc
Subject: Re: MNP Level 5 Modems
Message-ID: <1989Oct27.153347.13995@world.std.com>
Date: 27 Oct 89 15:33:47 GMT
References: <32171@ucbvax.BERKELEY.EDU> <186@cica.cica.indiana.edu>
Reply-To: madd@world.UUCP (jim frost)
Organization: Software Tool & Die
Lines: 20

In article <186@cica.cica.indiana.edu> mr@cica.cica.indiana.edu (Michael REGOLI) writes:
|kipnis@janus.Berkeley.EDU (Gary Kipnis) writes:
|>How do I find out if the other line supports MNP Level 5 protocol
|
|Gary, if you receive the "CONNECT 2400/REL" message, you have
|established a RELiable MNP5 link with the host.

This is only partially right.  You will have connected with a modem
that supports some level of MNP, not necessarily level 5.  I've seen
several modems which have level 4 and Microcom has support for (at
least) level 6 and level 9, since I've seen both on their 9600bps
modems.

MNP-compatible modems have a handshake which determines which level
they will use, so all of this is fairly transparent to the user except
for speed and reliability improvements.

jim frost
software tool & die     "The World" Public Access Unix for the '90s
madd@std.com            +1 617-739-WRLD  24hrs {3,12,24}00bps