Good evening all. I just installed 3CX on a small server for 10 extensions on site for internal use only (simple install). Works awesome clear voice and easy to setup. Suddenly and randomly - some phones starts ringing. Is their any way I can avoid this issue? I am not talking about the ring goes on after a phone authenticates to the VoIP server. And lastly all phones (grand stream 1625) remains with a sign of don't disturb, I mean an icon with a phone and a slash in the center. Can someone here please help me with the 1st and 2nd problem. Would be greatly appreciated. Best.