Nippon Telegraph and Telephone Corporation

Masuo Yoshimoto

Toshihiko Suguri

Norihiro Ishikawa

The present invention discloses an Internet billing method which can reject invalid orders with reliability, and which can be used without a credit card. In the present invention, a terminal makes a request of a content server for a chargeable service by using a prepaid information medium which has predetermined information necessary for transactions. After the request, the content server makes a request of a prepaid information management server for authentication to check whether the prepaid information medium is authorized to be used for the chargeable service, and for billing for the prepaid information medium. Then, the prepaid information management server authenticates the prepaid information medium and performs the billing for the prepaid information medium on the basis of usage of the chargeable service. If the authentication and the billing succeed, the content server provides the chargeable service to the terminal.

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Tokyo, Japan

Masuo Yoshimoto