Patent ID: 6898421

Claim:
A service providing method using an information terminal, said method comprising the steps of: at a service providing apparatus using both previously registered user identification (ID) information about a user of an information terminal and previously registered terminal ID information peculiar to the information terminal (a) creating an individual code peculiar to user input information, which has been inputted to the information terminal in accordance with a service requested by the user of the information terminal and has been received from the information terminal via first line; (b) sending said individual code, which has been created in said individual code creating step (a), to the information terminal via said first line; at the information terminal (c) notifying the service providing apparatus of said individual code, which has been received from the service providing apparatus via said first line, via a second line; at the service providing apparatus (d) specifying user input information corresponding to said individual code, which has been notified by the information terminal via said second line; (e) specifying personal data of the user of the information terminal, based on both said user ID information received from the information terminal via said first line and said terminal ID information received from the information terminal via said second line; and (f) executing a desired service for the user of the information terminal based on both said user input information specified in said user input information specifying step (d) and said personal data specified in said personal data specifying step (e).