Quote Originally Posted by sr98user View Post
If your Line 1 port is 5060, and if it is being used by another node in your network, then it might pick a different outgoing global port.
I have a CallVantage box on my network too. I wonder if it is interfering? I cannot seem to get into it (well, maybe I can if I hook a laptop up to it with a wire into the LAN port) to see what port it is using, and I don't see anything in the router log.