- Bronze, 100 points or more
I have a sip trunk from ccm 5.x to an operator gateway and can make calls to pstn without problems.
The problem is that when i receive a call from the sip gateway via the sip trunk, the call manager sends SIP/2.0 503 Service Unavailable.
NOTE: i receive the full number from the trunk and convert it to the extension via translation-pattern.
Is there any special configuration to solve this issue in inbound calls?