| 摘要 |
The present invention relates to a method and a system for electronic commer ce as well as a method for checking that a buyer has electronically registered a purchase before delivery of a purchased merchandise. A problem is to secure who the buyer (SBS) is without him or her having established a relationship in advance with the seller. The invention solves the problem by letting the seller offer his/her merchandise from an application (AP1-AP3) in an interna l packet data network (CSN). The packet data network is connected to a GSM- network. The buyer (SBS) is provided with a mobile terminal (MS), and to activate it, he/she gives a code. A session with the application can be set up only from a mobile terminal, and the application then receives information about the identity of the terminal. With reference to this identity, the application sends an order back to the GSM-network. According to one embodiment, the order means that a payment order shall be registered in a payment node, which is controlled by the operator of the GSM-network, for later charging of the buyer. According to another embodiment, a given accoun t number is checked.
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