I am facing one way voice issue for calls over the h323 trunk.
This trunk is for (integration) cisco to nortel communication.
Most of the time calls are getting through & both way communication happens properely. But sometimes we are facing this one way voice issue when calling from cisco IP phone to Nortel IP phone & vice versa.
Please check attached log files and let me know if you found something.
Attached CCM traces
MTP - Full traces for all calls.
MTP1 - Selected logs where i found issue allocating MTP.