I am using FreePBX version 16 and configured SIP trunk with Twilio. I refered the following doc https://assets.cdn.prod.twilio.com/documents/TwilioElasticSIPTrunking-FreePBX-Configuration-Guide-Version1-0-FINAL-06122018.pdf
The Phone to test calls is done using webrtc phone provided by FreePBX UCP. I can make outbound calls through this trunk but not able to make inbound calls.
I am attaching log of twilio call log error for incoming call fail. enter image description here enter image description here The freepbx firewall servers are all disabled.
Checked if the firewall is blocking twilio signalling ip's which isn't. Checked the origination url no luck. The issue is that the communication signal from twilio sip trunk to freePBX isn't established thereby failing incoming calls to freePBX.