| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile communication device, a backup device and a backup method or a backup system using these devices which can easily carry out data backup. SOLUTION: In a communication system carrying out communication between mobile communication terminals and ordinary telephone sets, a backup method for data of the mobile communication terminal provides a backup server 123 for backing up the data. The mobile communication terminal 10 provides a memory 34 for storing the data, and an antenna 38 for transmitting the data. The data are transferred from the mobile communication terminal 10 to the backup server 123 by a transmission request from the backup server 123. COPYRIGHT: (C)2004,JPO
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