I had a earlier thread where i learned the steps to get SIP up and working. Now I am trying to get it working externally.

I am working with Bria and X-Lite on a CIX670, both connect great internally and both connect externally when a VPN is running. But externally with no VPN I get a 407. I have multiple external IP5000 phones working find pointing to the external IPU IP address, i am not sure what i am missing for the SIP connection.....ideas?


Just in case here is my other thread on how to get it working internally https://www.sundance-communications.com/forum/ultimatebb.php?/ubb/get_topic/f/11/t/004840.html