| 摘要 |
PURPOSE:To make it possible to report service tariff information to the subscriber side rapidly and accurtely by transmitting service tariff information from a unit, which accumulates the service tariff, to the private unit through a service line which is held at a service completion time. CONSTITUTION:Private unit 11 is connected in parallel with subsriber's telephone set 1 stored in an auotmatic telephone exchange and receives service tariff information coming from the exchange 3 side and displays this information on a memory. Then, an epuipment is provided which receives subscriber's number information of a calling subscriber and a called subscriber from exchange 3 and busy information to accumulate the service tariff for every calling subscriber, and service tariff information is transmitted from this equipment to private unit 11 through a service line held at a service completion time. As a result, service tariff information can be reported to the subscriber side rapidly and accurately. |
