| 摘要 |
Utilizing a wireless telephone functioning as a transaction device. The wireless telephone places a call to a site computer controlling a transaction unit. For example, the transaction unit may be a cash register at a supermarket. The wireless telephone then transfers to the transaction unit account information specifying the type of account against which the transaction is to be billed and identification of that transaction. The site computer controlling the transaction unit responds with a transaction number which is transmitted to the transaction unit and wireless telephone. The user of the wireless telephone then confirms the transaction when the correct transaction number is displayed on the transaction unit. After the transaction is completed, the site computer controlling the transaction unit transmits the data defining the transaction to the wireless telephone which stores this information in a database associated with the account against which the transaction was charged. In a second embodiment, the transaction number is not visually displayed but rather is transmitted over a second transmission media to the wireless telephone confirming that the correct transaction is taking place.
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