ARRANGEMENT AND PROCEDURE FOR DATA PROCESSING AND DATA EXCHANGE RELATING TO PAYMENT TRANSACTIONS

摘要

The invention relates to an arrangement for data processing and data exchange relating to payment transactions, consisting of three external systems. The invention is characterized in that it has at least one embedded wireless device (2) implementing the communication of the data transmission between the three external systems, which is connected to the authorization centre (1) with one communication transmission channel (5A), to the counter system (4) with another communication transmission channel (5B), and to the portable device (3) with ISM band wireless data transmission (6), and the embedded wireless device (2), the portable device (3) and the counter system (4) is installed at a respective geographical location, while the authorization centre (1) is located in a place other than the respective geographical location.