“called subscriber”可以造什么句，called subscriber造句

Called Subscriber Identification. Optional signal used to provide the specific identity of the called subscriber by its international telephone number.

A signal sent in the backward direction to indicate that the call has been placed in a waiting queue because the called subscriber is busy but has the camp on facility.

First, the audio signal is established in the same way that any phone call is made... only if the called subscriber also has a video phone set.

called subscriber held lamp