CX Version: 18.0 Update 1 (Build 237)
Server OS: Debian GNU/Linux 10 (buster),4.19.0-18-cloud-amd64
3cx hosted
Provisioning Method: Only using softphones
Trunk Provider: Call Centric
Has the Firewall Checker passed: YES
Are custom Phone Templates being used: NO
So this is a weird one.
The...