| 摘要 |
PURPOSE:To correlate traffic information and charge of using the main wire and leased line by providing a call duration integrating memory and an originating number integrating memory in a charging device so as to correspond to an extension telephone set, main wire trunk and leased line trunk. CONSTITUTION:When an extension transmitted to a main wire or to a leased line, or made tandem connection of leased lines, trunk number of connected main wire (leased line), originating time, ring-off time are sent from a call processing controlling section 5 to a charging device 6. A call duration integrating memory 11 integrates call duration based on this. At the same time, one time is added to the number of times of originating by the originating number integrating memory 12. Further, integration is made by a newly provided call duration integrating memory of connected main wire or leased line trunk and the number of times of originating is added by one. |
