| 摘要 |
A payment transaction method and system in which payment transactions are carried out between customers, with portable mobile appliances (1), for example, mobile radio telephones, and several payment terminals (2) at a service point (5). The payment terminal (2), responsible for a payment transaction, informs the customer concerned of the transaction total amount and the transaction identification of the payment transaction. The transaction identification comprises a payment terminal identification and service point identification. The payment terminal (2) transmits the transaction identification and the total transaction amount to a central transaction centre (4) and the mobile device (1) transmits the transaction identification, indicated by the customer to the mobile device (1), via a mobile radio network (6) to this central transaction unit (4), and the central transaction unit (4) transmitting a payment request to the mobile unit (1) from which the transaction identification was transmitted. In the mobile device (1) a payment record is prepared comprising a linking of the payment request to a customer identification for the customer, and is transmitted from the mobile device (1) via the mobile radio network (6) to the central transaction unit (4), after which the central transaction unit (4) transmits a transaction confirmation to the respective payment terminal (2).
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