| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a settlement file management system capable of changing models for a plurality of settlement servers without needing complicated operation in changing the model of a portable communication terminal, and capable of maintaining high level of security of a settlement file. <P>SOLUTION: When a user operates an old cellphone device 10A to start the model change and performs operation of collective transmission, the old cellphone device 10A makes model change request to each the settlement server. Each the settlement server authenticates the old cellphone device 10A. When the authentication succeeds, the old cellphone device 10A writes address information of each the settlement server into a memory card 40, and erases the settlement file stored in its own memory 17. Similarly, when restarting settlement, a new cellphone device 10B makes settlement restart request to each the settlement server by collective transmission operation from the user, stores the settlement file into the own memory 17, and erases the address information of the memory card 40. <P>COPYRIGHT: (C)2007,JPO&INPIT |
