If the Call Redirect step sends a caller to a device that does not exist in the CallManager, which branch of the step is executed? （）A、Busy B、Invalid C、Successful D、Unsuccessfu
题目
If the Call Redirect step sends a caller to a device that does not exist in the CallManager, which branch of the step is executed? （）
- A、Busy
- B、Invalid
- C、Successful
- D、Unsuccessfu