An encapsulation of the act of initiating an outgoing call.
- iOS 10.0+
- UIKit for Mac 13.0+Beta
CXStart is a concrete subclass of
CXCall. When the user initiates an outgoing call, the provider sends
provider(_: to its delegate. The provider’s delegate calls the
fulfill() method to indicate that the action was successfully performed. To indicate that the call started at a time other than the current time, you can instead call the