A programmatic interface for an object that manages a list of active calls and observes call changes.
- iOS 10.0+
You can retrieve a list of active calls on an
CXCall object using the
calls property. You can also provide an object conforming to the
CXCall protocol as the call observer delegate using the
set method to respond to any active call changes.
VoIP apps typically interact with the
CXCall object returned by the
call property of a
CXCall instance. However, any app can create a new
CXCall object to be notified of any calls activity on the system.