User group DB (70) stores a serial number of the mobile phone of the user. Action DB (69) stores an individual identification number for identifying RFID which is set up by a service provider and an action associated with the individual identification number. A web server function (61) controls reception of the serial number and the individual identification number, which are transmitted from the mobile phone; and a service providing section (67) executes, when the serial number and the individual identification number are received, an action of providing a service of the service provider to the mobile phone of the user.