A simple guide to modems, found on a mailing list...
(Not SoVerNet info)


Our installer package for win3.1 defaults to a modem
init string of at&f&c1&d2.  That works great for Rockwell based modems and
several other generic modems.  It doesn't work worth a flip for USR, Supra,
or Gateway Telepath II-V modems, though.  All USR's made in the past two 
years
or so need at&f1.  Supra's need at&f2.  I have yet to figure out exactly
what Telepath II-V's need, but at&f1&k1&m4 is working well for my users so
far.  On the Macintosh side of things, most of them have Global Village
modems.  I go look up global village's reccomendation for flow-control and
init string on http://www.globalvillage.com.  When global village says
to use hardware handshaking with ZTerm, that means CTS-Only for MacPPP.
For Supra's on Macs, AT&F1 and CTS-Only.  For anything else on a Mac,
I find out how to disable flow control on that modem and set it to none
in MacPPP--not the ideal solution, but it works pretty well for me.