I've installed CCME 4.1; all seems working fine except the callback. When I call a busy DN and i press CALLBACK my phone does not hangup the call and callback is not working.
If i look on the router ( 2811 ) I see the Call reserved but it doesn't work.
CCME is 4.1
IP-phone load ( 7941 and 61 ) is 8-2-2SR1