Dear All,   Can someone help me to provide information about the given below sessions between IP Phone and CUCM Publisher and Subscriber. Why source and destination both ports are higher and what kind of communication happens during the sessions. As ...

I have one remote branch connected with HQ through IPSec VPN. We have 4 cisco ip phones (3911,7942,7945) connected with Cisco Switch 3560x at remote site. We have Cisco Call Manager 9.1.2 Publisher and Subscriber at HQ.   IPSec VPN is made through Fo...