FreePBX and TLS

NethServer Version: NethServer 7.8.2003
Module: FreePBX 14.2.8

Good morning everyone!

I have installed the Asterisk / FreePBX switchboard on a production server, configured to work in FTTH and working correctly with two Yealink T21P E2 terminals.
Could you get it to work on TLS?
And if yes, how can I do it?

I’ve been looking for information about it but I can’t get it to work.
I have the sip.mydomain.tld subdomain configured and with a Let’sEncrypt certificate requested through my NS. I have changed ports from 5060 to 5061 with no success.
I see that in FreePBX I can also request an LE certificate, but it gives me an error.
My configuration is this:
Internet - server.mydomain.tld - sip.mydomain.tld (a DNS record pointing to server.mydomain.tld)

Thanks in advance and greetings!

you will need a reverse proxy to point to your sip server.

Can you see any ssl/tls error in /var/log/asterisk/full ?