| 摘要 |
PROBLEM TO BE SOLVED: To share a telephone number and a usage history used at one telephone device even with other telephone device when using more than one telephone set by interchanging an IC card. SOLUTION: Card telephone book data 13 is stored into a UIM (user information module) card 10, telephone set telephone book data is stored into a telephone book storage part 25 in a card system cellular phone 20. The number of times of using and the latest date of using of each telephone number are stored into both telephone books. When mounting the UIM card 10 on the cellular phone 20 for using the telephone set, a memory is checked, and usage history data in the telephone set telephone book data related to the shared telephone number is updated by the card telephone book data 13. Simultaneously, also in the card telephone book data 13, the telephone number is updated together usage history information according to order of decreasing number of times of using and in order of date from the latest date of using in the updated telephone device telephone book data. Consequently, the telephone number and the usage history can be shared among more than one telephone device via the UIM card 10. COPYRIGHT: (C)2004,JPO
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