Rick Collins wrote the following to Lyle Gardiner, and I quote (in part):
 RC> It's impossible to say with any assurance.  But, 2400 bps modems
 RC> were quite simple in comparison to what's available today.  They
 RC> may or may not have NVRAM for stored profiles.  To find out, type
 RC> ATZ in a terminal session.  If you get an "OK" response, then the
 RC> modem at least will have NVRAM.
Alas, that really isn't going to tell you if a given device has NVRAM. Some 
of the new low-cost designs have no NVRAM (eg. SupraExpress), and respond 
with an "OK" to both ATZ and AT&W commands.
Regards....
Craig
aka: cford@ix.netcom.com
   : craig.ford@f2001.n106.z1.conchbbs.com
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