| 摘要 |
PURPOSE:To automatically indicate and record the communication charge and the like by providing a device having detecting and processing function of dial pulse and the like at a connecting portion of the telephone circuit and the telephone set. CONSTITUTION:The detecting portion A is connected to the telephone circuit 2 and the telephone set 1 through the connection terminal portion 3. The detection of the dial pulse signal and the communication start and completion signal corresponding to the communication zone is carried out. In the control portion B, the pulse of the cycle corresponding to the dial pulse is generated to indicate the charge display in the display portion C. The items required relating to the communication is memorized and in addition, in accordance with the completion of the communication, the items required for the communication is recorded in the recording portion D. |
