I have a call flow as per the below for a SIP PSTN call inbound to my CUCM cluster via CUBE.
ITSIP --> CUBE --> CUCM
I am getting a wierd signalling delay 8-10 sec before CUBE sends on the invite to the CUCM. the experience for the external calling party is no ring back until the cisco phone starts ringing, once connected the call proceeds ok.
currently i am running IOS-15.2.4.M5 on a 2921, am about to try an upgrading the IOS.
Anyone seen this before? see below sip debugs from the CUBE gateway
Debug ccsip mmessage
ICSOCD-G1# call hits Gateway
Oct 30 03:28:22.566: //754/000000000000/SIP/Msg/ccsipDisplayMsg:
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