Abstract: With a mobile communication terminal, normal call is enabled by installing a predetermined IC card. When an IC card is installed into the terminal, verification of an identifier of the IC card and verification of personal information corresponding to the identifier are performed. If the verifications have succeeded, the mobile communication terminal is customized in accordance with the personal information. A user performs communication by using his/her personal information and accessible information in a storage unit. At the time of identifier authorization operation, notification of whether or not the authorization operation has succeeded and of the identifier is provided to a predetermined administrator. When a certain mobile communication terminal is used by a plurality of users, personal information of each user is protected, operability of the terminal is improved, and the administrator can keep track of usage state of the terminal.

Abstract: With a mobile communication terminal, normal call is enabled by installing a predetermined IC card. When an IC card is installed into the terminal, verification of an identifier of the IC card and verification of personal information corresponding to the identifier are performed. If the verifications have succeeded, the mobile communication terminal is customized in accordance with the personal information. A user performs communication by using his/her personal information and accessible information in a storage unit. At the time of identifier authorization operation, notification of whether or not the authorization operation has succeeded and of the identifier is provided to a predetermined administrator. When a certain mobile communication terminal is used by a plurality of users, personal information of each user is protected, operability of the terminal is improved, and the administrator can keep track of usage state of the terminal.