On page 3-2 of the Megahertz reference manual (such as it is) for the XJ1144
there is a reference that says something like "For Rockwell Command modems,
error correction and compression ... ENABLED:"
AT&F&C1&D2&K3&S1&Q5
I use this string in Hyperaccess, Close-up, Carbon Copy, Microsoft Mail, and
Procomm.
This works for me.
Tim Nelson
SHL Systemhouse Inc.