I am setting up a new Asterisk box and we are having trouble hearing inbound callers. Outbound is working fine.
We have been trying to resolve the issue with our SIP provider (BroadVox, USA) and they are telling us that the problem is related to our IP address. They have our account setup to use a dynamic WAN IP address but they say that our PBX is sending them our LAN IP address which is what we cannot hear the inbound callers. I have looked through the Trunk configuration options, and the Inbound Route options, but I cannot see a setting that lets me control what IP information is being sent to them.
We have another Asterisk box up and running at a separate location with BroadVox and it works fine. However, at the other location the Asterisk box is connected directly to the WAN with a static IP.
Can someone please tell me how we might resolve this problem. I am trying to understand how to configure an Asterisk box behind a router with a static “LAN” IP address and still be compatible with our SIP provider’s authentication method.