| 摘要 |
A method and apparatus for generating metering pulses for a signal to be sent to a subscriber of a telephone system, said telephone system comprising at least one exchange and several subscribers connected thereto through several subscriber line interfaces, whereby during a call a number of metering pulses, said number being dependent on the call charging, are sent to those subscribers who have a call charge meter to indicate the price of the call. The apparatus of the invention comprises one metering pulse generator (15) which produces a standard metering pulse signal for several subscriber line interfaces and switching means (16) for applying the necessary number of metering pulses to a subscriber from the metering pulse signal. |
