| 摘要 |
User (2) connects to telecommunication network (11) via first proxy server (21) which replaces user identification number (2a) with new one (21a). User starts payment session with service provider (3). Service provider contacts third party (4) with information about payment session. Third party draws up contract and sends it to user and service provider for approval. Third party controls payment between user and service provider once service has been delivered. The user (2) connects to the telecommunication network (11) via first proxy server (21) which replaces user identification number (2a) with a new identification number (21a) associated with each communication packet sent by the user. During an initiation stage, the user starts a payment session with the service provider (3), then the service provider contacts a third party (4) with information relating to this payment session, and the third party draws up a contract based on this information, which is sent to the user and service provider for approval. The third party controls payment between the user and service provider once the service has been delivered in accordance with the terms of the contract. The third party sends a copy of the contract to the service provider and sends a further copy of the contract to the user, and the user has to sign the contract after approving it, and then return the signed copy of the contact to the service provider. Finally, the service provider sends the signed contract to the third party. Independent claims are also included for (a) software products for carrying out the functions for the first proxy server, the service provider, the third party and a second proxy server, and (b) a computer-readable medium containing software program code used to carry out the functions for the service provider, the third party and a second proxy server. |
