Occasionally a Class 2.x fax call fails because the AT+FDR command is not recognized by the modem. This may happen in approximately 1 of 200 faxes received.

This was fixed in firmware version 1.32f. The 1.32f firmware can be downloaded from our Web site at:

http://www.multitech.com/en_US/SUPPORT/Families/MultiModemDID/firmware