| 摘要 |
PURPOSE:To execute various kinds of automatic repeating services from a received dial signal by providing a voice identifying device which identifies a voice signal except a DTMF signal such as the signal voice of the dial signal of a pulse system dial transmitted by a communicating party telephone set, at a telephone related equipment. CONSTITUTION:A voice identifying device 7 receives the dial signal for selecting an extension telephone set from a caller. In the voice identifying device 7, the voice signal inputted from a trunk line 11 is compared by a data comparing means 33, the compared result is outputted to an information switching path 26, and transmitted to a central control unit 1. The central control unit 1 controls an extension control part 4 through an information switching path 23, the bell of a designated extension telephone set is rung, and the incoming call is communicated to the user of the extension telephone set. |
