I have an old FreePBX v220.127.116.11 (asterisk version 11.25.2) at one end (sys1) and a FreePBX v18.104.22.168 (asterisk version 13.20.0) in the other (sys2), using PJSIP on port 5060. Both are connected behind firewalls and have static public IP addresses (external IP and local network are properly configured on both ends).
I’ve been struggling for many hours with trying to make calls between them.
I was trying initially to create trunks without authentication, but sys1 kept rejecting the calls coming from sys2:
SIP Peer ACL: Rejecting ‘xx.xx.xx.xx’ due to a failure to pass ACL ‘(BASELINE)’
Then, I tried to add a username and secret to the trunk (on both ends), but that didn’t solve the problem either. I also disabled in sys2’s trunk pjsip advanced settings the field “Permanent Auth Rejection”, but that also didn’t solve the problem.
Can anyone suggest trunk settings for both ends to enable site to site communications?
Thank you very much in advance for your kind assistance.