Another working template for setting up telephony, this time from the provider Skyline
Since Skyline uses tas-ix, the primary authentication method is username and password. Below are the settings for this authentication method for Freepbx with the pjsip driver.
The trunk settings are provided assuming that the subscriber’s default FreePBX settings are operational. In particular, it is very important to ensure that your server is configured correctly for NAT.
If configured without authorization, the trunk will look like this:
Then everything is the same.
Don’t forget to forward port 5060 UDP to the server itself, because if you work in trunk format, the invite for incoming traffic will be sent directly to your address.