David Bowerman wrote the following to Richard Town, and I quote (in part):
     DB> The one that documents the extended v.42.  If it is not a
     DB> documented recommendation, it's someone's proprietary extension.
Microcom has made the technique for negotiating V.42bis over MNP4 freely 
avaialble.
 DB> Does any modem other than those marketed by Rockwell chipset
 DB> stuffers use extended v.42?
Yes. Lucent, Motorola, and ZyXel support it.
 DB> Was it part of the v.42 recommendation or an annex to that 
 DB> recommendation?
The capability to implement V.42bis over a suitable error correcting layer 
has existed since its adoption, but there is no ITU sanctioned standard 
method for diong so.
 DB> Have you managed to find any basis for your belief that USR
 DB> implemented the TIA/EIA-592 (Class 2.0 Fax) standard prior to it's
 DB> being adopted. 
 DB> Have you managed to find the TIA/EIA standard which defines Class 2
 DB> Fax? 
As we both know, and does Richard, -none- exists.
Regards....
Craig
aka: cford@ix.netcom.com
   : craig.ford@2001.conchbbs.com
--- timEd/2 1.10+
---------------