| 摘要 |
PURPOSE:To expand a communication area also for a subscriber who has left a car by adding a function for calling a pager (pocket bell) carried by a car telephone subscriber to a car telephone exchange. CONSTITUTION:A car telephone subscriber's (A02) No. dialled by a subscriber B99 is received by an exchange 22 and calling codes 35, 36 are sent from car telephone radio transmitters 31, 32 in service areas 11, 12. Since the radio receivers 31, 32 do not receive a response code from the subscriber A02, an exchange 21 translates whether a subscriber A01 who has left a car 100 carries a pager or not from the subscriber's data and sends calling codes from paging radio transmitters 51, 52 to call a pager 03. |
