| 20090305669 | TRANSACTION METHOD BETWEEN TWO SERVERS INCLUDING A PRIOR VALIDATING STEP USING TWO MOBILE TELEPHONES - Before effecting a transaction between two servers, this method sets up a communications channel in a wireless telecommunications network between each server and a mobile terminal. One of the servers sends a signal on its wireless communications channel. That signal is received by the mobile terminal in wireless communication with the server, emitted by the loudspeaker of that mobile terminal, picked up by the microphone of the other mobile terminal, and sent by wireless communication to the other server. If the received signal is validated by one or both of the two servers, the transaction is effected. | 12-10-2009 |