Since release 12.2.2T Cisco announced the support of H323 RAS (Gatekeeper registration, admission, status) through NAT on enterprise IOS versions. I've tried 12.2.8T -> 12.2.11T on 7206 and could not get it working - NAT translates the IP address in the IP header of RAS packets only and not the payload (H323 signaling address). Had a case opened but so far no clear answer whether this works at all and with what versions of H323.
Of course, the Cisco IOS release 12.2.2T onwards, has the feature of NATwith Enhanced H.225/H.245 Forwarding Engine but it doesn't support RAS. This has been mentioned in one of the Cisco documents given below. Please refer:
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...