Is there any indication that the FWSM is actually involved? That is, is there a port expiring on the firewall at the time of the video loss? Does this happen on all connections or only some connections? Where I'm going with this is that it could s...
H.460 is an alternative to H.323 inspection in the firewall. The two techniques are mutually exclusive. H.323 inspection is on by default on the FWSM so if the situation is that the firewall is closing a TCP port on you, that would imply that H.323...