PURPOSE: To simplify change in a broadcast area requiring much labor and cost by enabling the revision of broadcast area only with data rewrite in the inside of a storage drive in a wired broadcast telephone set for communication or ordering provided to a less populated area such as a farm or mountain village.

CONSTITUTION: A broadcast equipment 132 among broadcast equipments 131∼13m for different broadcast, for example, is used for the broadcast, then the broadcast area number 82 and the fact of use of the equipment 132 are informed to a central controller 14 via a trunk controller 122. The controller 14 refers a data memory table in the storage device 15 to inform a line controller 102 for the fact of broadcasting the area number 82, a channel switch 11 is controlled to form a broadcast path between the equipments 102 and 103. The equipment 102 controls a broadcast signal amplifier 92 to amplify the broadcast signal and broadcasts to the area number 82 via a subscriber line. Thus, the broadcast makes the device 15 correspondent to the area number and line stored therein and makes broadcast according to the table.