| 摘要 |
PROBLEM TO BE SOLVED: To retrieve a position without invading privacy by allowing a retrieval object party to carry a position detection exclusive PHS from which calling and speech functions are omitted so as to use a general PHS service system. SOLUTION: A party to be retrieved carries a position detection PHS 10, and every time a base station zone changes through the movement of the PHS 10, the position is registered and an identifier CSID of a base station 4 where the party is resident is stored. Upon the receipt of a call from a general speech PHS 20 provided with position detection function, the PHS 10 controls immediately the call reception without awaiting key entry or the like, the stored CSID is sent to the PHS 20. Then the general speech PHS 20 receives the CSID sent from the PHS 10 and displays it on a display section. |
