call drops after 32 seconds.

[E2-Sterlin]

The call works good with audio at the both end, but it gets dropped after 32 seconds without hanging up by the users. It happens for every call. Any solution ?

Thanks in advance

[Hobby-Student]

In my experience this usually is a firewall problem. I had those problems (years ago) with an asterisk behind a pfSense with NAT. Perhaps replacing UDP with TCP could be your solution.

Info: I have no experience with flexisip, but I saw your question while checking flexisip as a replacement for FreePBX.

[AlexAMCS]

Check the debug log and see if you're getting a SIP 504 from the server.

[E2-Sterlin]

Check the debug log and see if you're getting a SIP 504 from the server. Nope I am getting the 503 error