Method and apparatus for information of billing charges, subscriber terminal and service platform

摘要

The method involves informing a subscriber (SUB1) about a billing for the use of telecommunication services associated with a communication connection, whereby a billing arrangement (CHARGE) receives one or several billing messages (MP) associated with the communication connection, and calculates the fees (CH) during the existence of the communication connection by device of these messages. The billing arrangement associates the calculated fees with an acoustic signal, and produces an electric signal (ES) corresponding to the associated acoustic signal. The acoustic signal is transmitted to the subscriber by device of a loudspeaker (LS) controlled by the electric signal.