| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an intercom system in which security against spoofing to a deliveryman can be enhanced, while minimizing decrease in efficiency of home delivery business.SOLUTION: An intercom system includes a recording medium 4 recording the deliveryman identification information capable of identifying the deliveryman, an entrance slave station 2, a room master station 3, and a courier server 6. After inquiring the deliveryman by using the deliveryman identification information, an electronic visit vote is displayed on the display of the room master station 3.</p> |
