| 摘要 |
PROBLEM TO BE SOLVED: To provide a collective housing intercom system of which a conventional operation that inputs a room number cannot call a resident. SOLUTION: A room master unit 2 comprises a call number setting means which sets a call number for calling himself/herself from a collective door unit 1. A control unit 4 comprises a collation part 45 including a call number storing part 44 in which the call number set by the room master unit 2 is stored, to collate a call number transmitted from the collective door unit 1 with a stored call number. If there is a matched room master unit 2, a call signal is issued to the room master unit 2, for calling. If there is no matched call number, no calling is made. COPYRIGHT: (C)2008,JPO&INPIT
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