At 16:03 07/03/97 -0500, you wrote: >IBM's doc file for installing NT 4.0 on Thinkpads mentions that the MWAVE driver is currently Class 2 compliant only. NT Personal Fax only supports Class One...... Thanks Greg, ... I missed this one. In fact MWAVE replies OK to AT+FCLASS=0 and =2 commands but ERROR to AT+FCLASS=1. Regards, Alain