Path: utzoo!utgpu!watserv1!watmath!att!mcdchg!laidbak!obdient!vpnet!cgordon
From: cgordon@vpnet.chi.il.us (Gordon Hlavenka)
Newsgroups: comp.sys.ibm.pc
Subject: Re: MNP Modems
Message-ID: <268624c8-1f84.12comp.sys.ibm.pc-1@vpnet.chi.il.us>
Date: 25 Jun 90 17:55:05 GMT
References: <90167.195055CES8@psuvm.psu.edu> <29803@eagle.wesleyan.edu>
Lines: 21



>Sometimes yes, sometimes no.  My modem (an Acermodem 2424) has an M
>dialing-modifier, which has the modem try briefly (in originate mode) to
>establish an MNP-reliable connection, and to make a regular connection if
>MNP-reliable is out of the question.

I use the PM2400SA MNP from Practical Peripherals.  After a week or so of
experimentation, the modem now communicates with every system I've tried. 
MNP is used if supported, otherwise just standard 2400bps.  The only problem
I've seen is that there is sometimes a problem getting block-oriented file
transfers to work.  (YMODEM, etc) with non-MNP modems.  These problems are
minor, but did not exist when I ran the modem in non-MNP mode with the same
systems.

In Telix 3.12, it is possible to have different dialing prefixes for
different systems on the dialing list (four codes intended for Long Distance
access are provided).  Set one up for MNP systems, and another for non-MNP,
and you've got the best of both worlds.
----------------------------------------------------------
Gordon S. Hlavenka                 cgordon@vpnet.chi.il.us
Disclaimer: He's lying