| 摘要 |
PURPOSE:To make many helping hands for offering a service unnecessary, by charging a call charge of a call to be made between optional telephone sets, as a call charge to a subscriber who desires a third party charging service. CONSTITUTION:A memory is provided on a charged repeating switchboard (charged TTS-CR) to which a subscriber who desires a third party charging service belongs, and when an outgoing side telephone set 1 dials a specific number, it is connected to a trunk PBORT, the trunk PBORT, transmits and receives necessary information for the third party charging service to and from the telephone set 1, executes confirmation between the memory and itself, and after that, it is connected to an incoming side telephone set 9 so that a call can be made, a necessary data for charging is transmitted once, is stored in a charging area of TTS-CR4, and when the telephone set 1 is disconnected, connection of a call is released, also a charging data of the charging area is transferred to the TRS-CR20, and is charged to a subscriber who desires the third party charging service. |
