callFailed
Indicates if a Call has failed, which happens when the Call.state is in CallState.DISCONNECTED and the Call.disconnectedCause is either DisconnectCause.RESTRICTED, DisconnectCause.UNKNOWN or DisconnectCause.BUSY.
Indicates if a Call has failed, which happens when the Call.state is in CallState.DISCONNECTED and the Call.disconnectedCause is either DisconnectCause.RESTRICTED, DisconnectCause.UNKNOWN or DisconnectCause.BUSY.