Abstract: A system for processing a request of a mobile device, and there is provided an information collection device, which is configured to associate the information received from processing devices or from the mobile device of the system with respective requests of the mobile devices in order to determine the current status information of each request of each mobile device, for which purpose there is carried out, in the case of the absence of request identification information required for a clear association and/or identity identification information, a first association by way of further pieces of information contained in the request information, and that the information collection device is configured to transmit the current status information of the respective request to the respective mobile device.

Abstract: In a method for establishing communication between a transaction terminal (1) and a mobile device (2; 6) located within communication range (5), wherein the transaction terminal (1) is able to communicate in an active and in a passive communication mode and wherein the following process steps are performed: activating the passive communication mode in the transaction terminal (1) for a first time range (t3-t4; t7-t8) in order to establish a passive communication of the transaction terminal (1) with a mobile active device (6) possibly located within communication range (5); activating the active communication mode in the transaction terminal (1) for a second time range (t5-t6) in order to establish an active communication of the transaction terminal (1) with a passive mobile device (2) possibly located within communication range (5), if communication with a mobile active device (6) was not established in the first time range (t3-t4; t7-t8); detecting a carrier signal (7) of a mobile active device (6) possib