1. The subject must be a short summary of the problem including the version:Hi @easydoner,
Can you provide more detail? https://www.3cx.com/community/threads/every-new-post-must-contain.20492/
Can you provide a screenshot of what you're seeing?
Nothing happens on the screen.Of the screen while it's ringing.
One more question, while your phone is ringing, if you pull down the notifications from the top, would you happen to see the incoming call there?
Also, if you have just opened the App, then you make an incoming call, does the App then ring?
There's no "Car/Bluetooth support (Telecom API)" option.In the 3CX App Menu, go to Settings --> Advanced and try unchecking the the first option that is "Car/Bluetooth support (Telecom API)". Then kill the app, relaunch it, make an outbound call to make sure that works.
After this, try an incoming call again. Does the same happen?
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.