Fixed - A problem with the MultiVoIP not sending the final ACK after 200 OK with some proxy servers. Some third party SIP proxy servers expect an ACK from the MultiVoIP after the 200 OK, which we were not sending in the earlier releases.

MVP2410 / MVP3010:
This was fixed in firmware version (4.07.c9) and corresponding software version (x.07).

MVP130:
This was fixed in firmware version (1.07.c9) and corresponding software version (x.07).

MVP210 / MVP410 / MVP810:
This was fixed in firmware version (6.07.c9) and corresponding software version (x.07).


The latest firmware and software along with instructions can be downloaded from our Web sites at:

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