Patent ID: 8457593

Claim:
An information processing device comprising: a detecting unit configured to detect, with regard to a plurality of wireless terminal devices sharing a usage right of a subscriber identity module relating to a mobile network operator which provides wireless connection services, transfer of said usage right among the wireless terminal devices; and a calculating unit configured to take a history relating to a usage of said subscriber identity module regarding the wireless terminal devices of which said usage right has been transferred, as a usage history of said subscriber identity module, in the event that a transfer of said usage right is detected, to calculate fees relating to said subscriber identity module occurring after said transfer, based on a transfer history of the usage right that has been detected, the usage history of said subscriber identity module, and billing information set for the wireless terminal device to which said usage right has been transferred, and to calculate fees relating to said subscriber identity module using, as the usage history of said subscriber identity module, at least one of the contents of services which can be used by the wireless terminal devices regarding which said usage right has been transferred, the communication time and communication amount used by each of said wireless terminal devices, and capabilities relating to wireless communication which each wireless terminal device has.