| 摘要 |
PURPOSE:To attain a careful data communication even by an inexpensive device and also to relieve the load on the operator by connecting a display section to a control section. CONSTITUTION:A control section 1 provide display such as lamp or buzzer to the operator when all data are finished for transmission to a center after the operator completes data input and depresses a transmission key. Thus, the operator can leave a telephone set unitl the display is outputted after the depression of the transmission key. Further, a tone detecting section is provided, which detects a tone signal or the like transmitted from the center and can also provide a display to the operator. |
