CXEndCallAction
An encapsulation of the act of ending a call.
Declaration
class CXEndCallActionOverview
CXEndCallAction is a concrete subclass of CXCallAction. When the user initiates an outgoing call, the provider sends provider(_:perform:) to its delegate. The provider’s delegate calls the fulfill() method to indicate that the action was successfully performed. To indicate that the call ended at a time other than the current time, you can instead call the fulfill(withDateEnded:)