| 摘要 |
<p>Internet e-commerce can be carried out in a highly efficient as well as highly secure manner using devices and methods for conducting and billing a purchase, which can be transacted via the internet (7, 14), made by a customer (1) from a vendor (3) of products (8) or services. In order to transact a purchase requested (24) by said customer (1) via the internet (36), the customer's mobile radio telephone identification data (6) that represents the mobile radio telephone subscriber identity thereof is transmitted (2,7) from the customer to the vendor (3) via a mobile radio telephone network (2) and is forwarded (9) from the vendor (3) to a security device (4), whereupon a transaction number (13a, 13b) for this purchase which is present in the mobile radio telephone network (2) is transmitted to the security device (4) and to the customer (1) via mobile radio telephone service (37). When the customer (1) forwards (14) the transaction number (13a) to the vendor (3) via mobile radio telephone service (14), the transaction number (13a) is verified (4, 13b; 3, 13b) and a billing (19, 20; 21) is initiated when the transaction number (13a) is positively verified (in 4).</p> |
