I am sorry if there is another topic but i could not find it. I have configured my 3cx Phone system and one of my remote extensions is unable to receive outside incoming calls and to dial to any number / extension. I have run the friewall checked and it passed all tests as attached. It can receive itercom calls and listen and speak properly. I have other 2 remote extensions configured the same way and working fine. I would be very thankful if you could help me with this issue.