When AAR is triggered in CUCM (I mean once the phone says "Not Enough Bandwidth. Rerouting"... and attempts to dial the External Phone Number Mask entry of the destination phone, the call once routing over the PSTN with the E.164 reaches the far end router over PSTN but the return VOIP Dial Peer to CUCM does not seem to reach CUCM.
Fix:
"Bind your H323 traffic to a Voice Interface on the Remote Voice Gateway that is returning the call to CUCM and reregister the remote gateway in CUCM as H.323.
Also do the following (although the above H323 traffic binding fixed the problem)
voice service voip on both gateways and allowed-connections h to h
Also if it's a 15.0 IOS then either say "no IP Address Trusted Authenticate" or add the ip address of the source to the "IP Addresss Trusted List" under "voice service voip"
Fix:
"Bind your H323 traffic to a Voice Interface on the Remote Voice Gateway that is returning the call to CUCM and reregister the remote gateway in CUCM as H.323.
Also do the following (although the above H323 traffic binding fixed the problem)
voice service voip on both gateways and allowed-connections h to h
Also if it's a 15.0 IOS then either say "no IP Address Trusted Authenticate" or add the ip address of the source to the "IP Addresss Trusted List" under "voice service voip"
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