Abstract: A method transmits contents of a continuous data stream from a first server to a terminal, whereby the contents are provided by a source and transmitted to the first server. An associated piece of information is provided by the source for each content item and the information which can be allocated to the contents of the transmitted data stream are transmitted to the terminal by means of another server.

Abstract: The invention relates to a method allowing a client to electronically pay at least a minimal amount for a merchandise or service to a retailer by using a data network and/or telecommunication network with the aid of an accounting system server. An unambiguous process identifier is generated for the payment process or the series of payment steps and is transmitted at least during a first payment step in a confirmation request from the accounting system server to a client terminal along with information on the amount to be paid.

Abstract: The invention relates to a method for the transfer of an electronic sum of money from a credit store of a money sender to an account or credit store of a money receiver, by means of a telecommunication and data network, whereby the transmission of the necessary data occurs by reference to an identification code for the money receiver, or for the money transfer between a first and a second server of at least one service operator.

Abstract: A system and method where a value sender's values are managed on central servers. On the central server, a separate value credit line for offline transfers is managed in a value account associated with the sender by virtue of the corresponding value credit optionally being reserved for the credit line in the sender account. During an online connection, the value credit still available which is stored on an intelligent device and also the values demanded by the receiver are communicated to the server. The value sender's value account on the server is reduced by the value sum used. During an online connection, the server transmits the arranged credit line to the read/write unit. A transmitted credit line is stored on the intelligent device as available value credit. For offline transactions, the available value credit on the device is reduced by the values transmitted to the receiver.

Abstract: Method and apparatus for micropayment in payment transactions via mobile radio or data networks, wherein the user is provided the opportunity both to accept the “basic charge” and at the same time to reserve a larger sum for the desired service.