i have callmanager(4.1) and 7940 ip phone(ver 7.1.3) and VT Advance(web camera).
I tried to connect ip hone and VTA. but the 7940 ip phone didn't dispalyed camera icon on it's LCD pannel, eventhough i had check "video capability" on callmanager menu.
the 7940 version on callmanager is 7.1.2 and 7940's version is 7.1.3...
it can be caused the reason??
but i don't know how can i downgrade 7940 ip phone..?