Hello everyone,
I put in an OPNSense router and now my faxes have stopped working over VoIP.
I put my original router back in place and the faxes successfully send.
I am still very new to OPNSense so I am not sure where to start troubleshooting the issue.
Any guidance on how would be very much appreciated! I also searched the forums and the web and did not see any references to T.38.
Hello,
Just wanted to update anyone. I got a list of all servers my provider uses and created an alias with them and then created a firewall nat rule to allow traffic from my providers servers to my PBX and everything including faxes now works properly.