| 摘要 |
The method involves receiving a payment request via a communications filter (Fl), modifying the request by adding a transaction identifier, passing it to a transaction server (WS), passing information with the identifier from the filter to a communications terminal (MS), passing a payment initialization with a further identifier from the terminal to the server, comparing the identifiers and transacting the payment if the identifiers agree. Independent claims are also included for the following: (1) a filter for a communications system (2) a transaction server (3) a computer program stored on a computer-readable medium
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