| 摘要 |
PROBLEM TO BE SOLVED: To provide a principal confirming method and a principal confirming system required in cashless settlement of a service charge, such as the use of a parking garage, shopping and a mail-order sale in a store, and use of Internet ASP. SOLUTION: This principal authenticating method required in the cashless settlement, comprises a procedure (a step 1) for informing a control device arranged in a providing site of commodity and service of a telephone number of a portable information terminal possessed by a user, a procedure (a step 2) for informing a settlement control device of the telephone number of the information terminal from a control device, a procedure (a step 3) for inquiring whether to approve to perform settlement by presenting a demand cause and the amount by telephoning to the information terminal of the telephone number from the settlement control device, and a procedure (a step 4) for confirming the principal, by confirming the input of the effect of approving the perform the settlement. |
