Hello
I had posted regarding a FreePBX machine behind NAT having trouble sending audio to a remote, NAT’ed TLS endpoint. The issue was a bug in Asterisk >=13.15. Downgrading to 13.14.1 resolved the issue. Below are captures of the symptoms:
To downgrade, run yum --showduplicates list asterisk13, find the appropriate 13.14 version, and run yum downgrade asterisk*13.14.1-1.shmz65.1.157, for instance. (replacing yours with whatever fits, if different). https://issues.asterisk.org/jira/browse/ASTERISK-27024
edit - @jessy5765 and I hav been chasing the same bug for a few days. This is also an issue for non-TLS remote endpoints and downgrading asterisk fixes for me too. Thanks @cullenl!