New deployment of IPCC Express 4.0(5a)sr2 and CM 4.1(3)sr6. All IPCC systems are in service and all ports (cti and route points) are registered. Sporadically, during testing, when the RP is dialed, I can see the call being handed to a port in the Call Control Group, but either we will get a fast busy or it will just ring. When we hangup and dial back, the trigger works and the script executes.
Any suggestions as to what the problem might be or what traces to enable to capture the problem?