I have a problem when I do a video call from the IP phone using CUPC to CUVA, in the CUPC I can see both local and remote cameras but in the CUVA I can only see the local camera.
Between CUPC-CUPC working properly and also between CUVA-CUVA.
I made a screenshot of the interface and i can see the port unreachable 16 389 that I think is one of the ports between the phone and CUCM.
which is the possible reason for this?