Abstract: A cellular radio system includes a unit for controlling payment traffic and a terminal equipment which can be used as a pay telephone in the cellular radio system. The terminal equipment includes a control unit connected directly to the cellular transceiver without a two-wire connection and a collecting means, for controlling collection operations, connected the control unit. The payment traffic is transmitted from the terminal equipment to unit for controlling payment traffic as short data messages over the cellular radio system. The terminal equipment further includes a hands free facility.

Abstract: A method for interpreting digits of a sequence transmitted to a radio transceiver receives at least first, second and third digits of a sequence having at least first and second intervals respectively between the digits, waits for a new digit after receiving the third digit for a waiting time, interprets the digits at an end of the waiting time, and thereafter gives a command for a radio transceiver to transmit the digits. The waiting time is determined during the sequence from at least one characteristic of each of the intervals.