PJSIP trunk transport changed from UDP to TCP, still responds to UDP messages

General Help
,
1

FreePBX 16.0.40 Sangoma distro / Asterisk 18.16.

Configured a PJSIP trunk on UDP, managed to get a few calls across but then were asked to switch to TCP (all other settings remaining the same), so I changed the trunks transport accordingly.

But the trunk still reacts to UDP inbound calls?

Is this because of “Allow Transport Reload” being on NO? If yes, does this mean I actually have to restart Asterisk to have the trunk changed from UDP to TCP?

Thanks,
Peter

2

There is no restriction on what transport (UDP or TCP) incoming traffic is handled by for anything. If UDP is configured as a transport on the system, then it will accept traffic. Turning off UDP (if FreePBX allows it) would require restarting Asterisk.