| 摘要 |
PURPOSE:To regulate calling in accordance with the telephone use purpose of each user, by providing a rewritable storage part and a calling control part based on this storage part correspondingly to the telephone user. CONSTITUTION:A push button telephone set TEL is stored in a subscriber switchboard LS, and further, a calling control part CONT to regulate calling of the subscriber is connected to the subscriber's circuit side, and a regulated number storage part MEM to regulate calling is connected to the calling regulating part CONT. When a number is dialed from the telephon set TEL, the calling regulating part CONT receives this number and collates this number with registered contents of the storage part MEM. If the dialed number coincides with registered regulation contents, it is reported to the subscriber with an audible tone that the dialed number is a regulated number, and calling is regulated by breaking the line forcedly. |
