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So this morning I arrive and discover that incoming calls are failing. Architecture is[CUCM] -<sip>-[CUBE]--<sip>--[onpremITSProtuer w/NAT]----[ITSP] all via sip. So I log into my cube router, and I can successfully ping my ITSP, and "show sip-ua reg...
I had this same error after upgrading from 14 to 15SU3 trying to pull an update from a synology nas via SFTP. My origional "Directory:" value was "cucm15". Once I updated the value to "/cucm15/" then it read the directory and I was back in business. ...
I should add that the issue happened again yesterday afternoon, and as soon as the "show sip-ua register status" expires timer hit 0, and subsequently re-registered calls started flowing again. CUBE#show sip-ua register status
Line ...
So the issue appears to be related to UDP Nat/Pat and open IP Sockets. If I run the command 'show ip sockets' I see an record that lists a local port in the 60,000 range when calls are working, which corresponds to what my carrier is seeing on their ...
So I have the debugs, but the one for failed calls shows nothing from the ITSP, and the one for a working call shows normal SIP signalling as expected. What specifically should I be looking for?
