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.