Using FreePBX 22.214.171.124
We get a quick beep before the ring-back, but only on Internal calls.
Did some PCAP capture on both internal and external call and only major difference I see is that on external TRUNK calls my Calix ATA only receives a “183 Session Progress” response with no “180 Ringing” while during the internal call setup I see two “180 Ringing” response and no “183 Session Progress”
Only reference I found to this issue is the following but it hasn’t helped me much…
I have tried removing the “r” from the Asterisk dial options but it hasn’t changed anything.
Any help or insight would be greatly appreciated.