Answer Incoming Call
To receive incoming calls the softphone needs to be running. You can see registration status in the system tray when the softphone is running.
To answer an incoming call, tap the green answer call button in the app or the corresponding button in the Toast notification on Windows.
Call Waiting
If there is a call already active any new incoming call will show up in the multi call view and can be answered by tapping the green answer button. Below Alisha's call will automatically be put on hold when the new incoming call from Bernado is answered.