| 摘要 |
PROBLEM TO BE SOLVED: To allow the system to conduct entrance/exit management automatically by utilizing a position registration function. SOLUTION: In the case of the system used for an enterprise, when a carrying person of a cordless telephone set 14 enters a monitor area 20 in the vicinity of a door 16 of a management radio base station 21, since a registered position of the telephone set 14 differs from position information in a control signal from the base 21, the telephone set 14 produces a position registration request. A cordless telephone set connector 12 decides the propriety of the position registration. When the registration is acceptable, a controller 18 checks whether or not the telephone number is registered. When registered, an electronic lock 22 of the door 16 is unlocked, the person enters a room 17. When the position registration of the telephone set 14 is made through a base station 132 in the room 17, the controller 18 stores the telephone number, a fact of entrance and its time. |
