FreePBX 18.104.22.168 (on premise)
Sangoma S705 (remote)
As far as I can tell, the VPN and endpoint are configured correctly, based on the wiki instructions.
The endpoint is able to connect to the VPN. I confirmed this within System Admin -> VPN Server -> Clients section.
It received an IP as set in the Server Range 10.8.0.0/255.255.255.0.
However, I am not able to make outgoing calls or receive incoming calls.
The FreePBX firewall is disabled.
I am not sure how to diagnose this problem. I would be grateful to any hints on this issue.