| 摘要 |
PROBLEM TO BE SOLVED: To enhance the operability of a telephone terminal when a user has no possessed phone terminal of own at hand and borrows the phone terminal. SOLUTION: Identification information to identify a terminal possessor stored, in the inside of the phone terminal is transferred to a phone terminal temporarily used, and the identification information to be transferred is notified to a communication destination. Furthermore, when a user leaves behind in its home or the like, a database stored in its inside can be transferred to a phone terminal possessed by other user or a public phone terminal, the phone terminal can manage the transferred database and a database located in the original phone terminal without causing confusion, and the function enables users to back up their databases.
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