Quote Originally Posted by VOIPoTim View Post
I saw your ticket and replied to it with info just now. Since your calls connect, but the audio isn't getting through, that means the call connects but something is blocking the audio stream. Per the ticket, please setup port forwarding and no SPI firewall is blocking the connections.

That should resolve your issue.
I have comcast business internet service with multiple static addresses. the voipo adapter has one of the static addresses. the router's firewall is disabled for all static addresses. this has been working since I installed the service several months ago and just started failing yesterday.

the router configuration is already all the way open; there are no additional packet filtering or firewall settings to disable.