I have a SwitchVox SMB PBX, this system is based on Asterix. I am trying to configure an end point (Polycom 550) to work over the WAN. I can pull my configs from the public FTP server and everything looks good. The phone will not register and I do not see any thing on the PBX noting why.
At first I thought that it may be a firewall issue, but when I disable my rules I see the firewall dropping the traffic. If I enable the rules, nothing in the firewall. I opened ports 5060 and 10000 - 10500 to the local IP of my pbx. If I open a vpn tunnel and use a soft phone configured for the local IP of the PBX it works. If I try and use the public IP, its a no go. I have tried from two separate remote networks with the same results.
Any ideas or help is much appreciated.