How to change SIP port in FreePBX

In order to change the SIP port for chan_pjsip from the default port 5060 to a custom value first go to Settings => Asterisk SIP Settings

Then go to the SIP settings [chan_pjsip] tab:

Now scroll down to the bottom of the page and look for

Change it to the desired port, e.g. 15060

click Submit on the bottom right

After that, don’t forget to click Apply Config on the top right

You also need to Restart Asterisk after the change.