cancelConsult method
Consult transfer, step 2b: end the consult and take the customer off hold. endCall is not a cancel: during a consult it hangs up the customer.
Implementation
Future<bool> cancelConsult() async {
final action = OmiAction(actionName: OmiActionName.CANCEL_CONSULT, data: {});
return await _controller.action(action) == true;
}