[cisco-voip] IOS NAT changing record route in SIP Headers

[Matthew Loraditch]

Has anyone encountered this before? It's actually not for UCM, but the SIP traffic is going through ZBF on a 1941 and inbound calls are failing because the record route in the sip headers is being changed to the public interface IP of the router vs the 1 to 1 NAT IP on some responses back to the SIP Provider.
I've opened a TAC case as well and it happens w/ and w/o SIP inspection.

Matthew G. Loraditch - CCNP-Voice, CCNA-R&S, CCDA
Network Engineer
Direct Voice: 443.541.1518

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