| 摘要 |
PURPOSE:To miniaturize the device, by connecting an automatic dial device provided with a sender and an address designating switch or the like transmitting a dial pulse to a key telephone set for selecting simply both a main trunk automatic dialing origination and an extension automatic dialing origination. CONSTITUTION:Plural key telephone sets No.1 KT, No.2 KT... are connected to a main device ME of a key telephone set and an automatic dial device ADS is connected to the telephone sets No.1 TK, No.2 KT.... The device ADS is provided with the automatic dial section AD, the sender SD converting an input signal into a dial pulse for transmission, address designating switches ADK1-ADKn transmitting automatic dialing origination, and a registration switch RK storing telephone numbers of opposite parties. The main trunk selecting information is selected and transmitted simply based on the operation of main trunk selecting switches LK1-LKn of the dial section AD and extension selecting switches PK1-PKn, allowing to miniaturize the automatic dial device. |
