I am implementing VoIP application on windows phone 10, I am using VoipPhoneCall.
When a user makes a call and bring an app to background, VoipPhoneCall is showed, and I want connecting mode in that status bar is showed correctly, when connecting mode is dialing it should be "Dialing", and when connecting mode is connected, it should be duration time. This is VoipPhoneCall status bar of Viber, and I want to do same.
Please help me, thanks

The key point is, we don't need to call the
VoipPhoneCall.NotifyCallActivemethod after usingVoipCallCoordinator.RequestNewOutgoingCallmethod.I used the official VoIP sample to explain.
See the VccCallHelper.cs file in the VoipTasks project.
Please notice the
NewOutgoingCallmethod(LINK):If we call the
VoipPhoneCall.NotifyCallActivemethod, the status bar will show the active timer. So just comment this line, the notification will be sent in theAnswerRequestedmethod, seeNewIncomingCallmethod->Call_AnswerRequested