| 摘要 |
inputting a subscriber number after detecting a subscriber hook-off or an internal subscriber call in a private switching system (100); checking whether the number is connected to a voice processing unit (200), and processing the call as a normal one upon finding that the number is not connected to the voice processing unit (200); outputting a message to the voice processing unit (200) upon finding that the calling number is connected to the voice processing unit (200); outputting a response if it is connected to the voice processing unit (200), and otherwise, issuing an error message; receiving a voice information service; and issuing a termination message upon completing the receiving of the voice information service.
|
