| 摘要 |
A service provider's server (SPS) receives dynamically address data and service attributes of available billing services and servers on telecommunication networks, such as the Internet, in advertising messages (DAAvert) which billing servers (BS1, BS2, BS3) or special directory servers (DA) send. The service provider's server (SPS) can select one billing service from among the available billing servers for the billing transaction of a client on the basis of the parameters given by the client and said service attributes or offer advertised billing services for the client to select. Then the service provider's server initiates the billing transaction with the billing server of the selected billing service by means of said address data and service attributes or transfers billing to the selected billing server which performs it. In an embodiment of the invention the server (SPS) is configured to transfer the billing transaction to the billing server and the client, which perform it using the attributes supported by the billing server and receive an acknowledgement of billing carried out from the billing server. The server preferably creates an invoice form which is transferred to the client device in a pre-filled form for use in a billing transaction between the client device and the billing server.
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