When running Avaya Communications Manager 2.1, the MVP210AV was unable to carry more than one call at a time to digital or analog phones. Problem has been fixed.

This was fixed in firmware version (9.06d3). This firmware along with instructions can be downloaded from SUPPORT portion of our Web site, which is currently:

http://www.multitech.com/en_US/SUPPORT/Families/MultiVOIP/firmware. Exact URL may change.