We have a few phones behind a firewall that use an Application Layer Gateway (alg) to allow the phone to work properly. The firewall uses NAT to map the local addresses to the addresses that the remote clients are assigned. This worked prior to our upgrade to CUCM 7.0.2 and the phone is running 8.4.4. There is one phone that didn't upgrade and its still running 8.3.3.
Is this something that was intended or should I open a TAC case to get it resolved?