As we know, in PJSIP we can specify external IP addresses for signalling and media with the following commands:
[0.0.0.0-udp] type=transport external_media_address=<external IP> external_signaling_address=<external IP>
This presumes that the internal port is mapped to this external IP and port 5060.
However, my NAT maps the internal port 5060 to the external port 5061. And I found out that the syntax like…
… does not work.
Is there any other way to specify the external port? Unfortunately, SIP ALG works incorrectly on the network equipment…
P.S. Asterisk 13.23.1