I have one 7937 in a remote office. It running software apps37sccp.1-4-4-0 just like my other 7937s. I have CUCM version 7.1.5. When I make a call to this phone I see that the call is active a both ends for a few seconds but no audio. Next the 7937 h...

I'm using an 2811 MGCP voicegateway as SCCP trancoder resource. Sometimes it run out off recources because communications manager isn't counting the resources corretly.The values on the available resource I see on Communications manager and on the vo...

I'm running CUCM 7.1.5.  I have two phones that are on different clusters. When I make a call form one phone to the other I have one way voice. I wiresharked the traffic and see the UDP packets received on both of the phones. On the one that has no s...