Patent ID: 8229396

Claim:
A wireless service purchasing system for getting a service provided by a service provider comprising: a radio frequency identification (RFID) tag; an RFID reader; a mobile device associated with the radio frequency identification (RFID) tag, the RFID tag being adapted to communicate with the RFID reader so that a user of the mobile device may be authorized to access the service; a subscriber identity module (SIM) card, wherein the RFID tag and SIM card are integrated, the user being identified by the same identification number in both the SIM card and the RFID tag; and a service provider server for receiving a request from the RFID reader when it receives the identification number from the RFID tag and verifying whether an account associated with the user has enough credit to gain access to the requested service and sending a reply to the RFID reader authorizing or denying access to the service according to whether there is enough credit in the account.