| 摘要 |
PURPOSE:To make plural simultaneous services possible by providing two handsets, two telephone number pulse generating circuits, two telephone number reception detecting circuits, and one telephone number input operation part combinationally on one case of a telephone set. CONSTITUTION:Input signals from telephone lines (a) and (b) are detected by telephone number reception detecting circuits E1 and E2; and if the office of this telephone set itself is designated, speakers F1 and F2 are sounded, and services are possible when handsets D1 and D2 are hooked off. In case of telephoning, the number inputted from a telephone number input operation part A is converted to a dial pulse signal by number pulse generating circuits G1 and G2 and is sent to telephone lines (a) and (b), and service is possible when connection to the other party is completed. In this telephone set, one telephone number input operation part A, two handsets D1 and D2, two telephone number reception detecting circuits E1 and E2, and two telephone number reception detecting circuits E1 and B2, and two telephone number pulse generating circuits G1 and G2 are arranged on one case H.
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