| 摘要 |
PURPOSE:To make an efficient business possible, by switching the entry key input to the dial input or a normal numeric input by hooking-on or off of the handset. CONSTITUTION:When a handset 4 is hooked on the handset table, a handset table switch 8 is connected to the 8A side, and the signal of level 0 is transferred to gates G1 and G2. Then, an FF1 is reset, and the signal from a keyboard part 1 is transferred to a CPU part 6 through gates G3 and G5, and therefore, the key operation under the normal state is discriminated by the CPU part 6 to perform the normal teller's business. Next, when a handset 4 is hooked off from the table and the other-party dial number is input from the keyboard part 1, the switch 8 is connected to the 8B side, and the signal of level 1 is transferred to gates G1 and G2. The signal from the keyboard part 1 is transferred to the CPU part 6 through the gate G2 under this state, and the key operation as a telephone set is discriminated by the CPU part 6. |
