| 摘要 |
PURPOSE:To prevent a computer service from being hindered due to insufficient transmission time of a push dial signal by sending the push dial signal consecutively for a period while a dial button is being depressed. CONSTITUTION:When the depression of a specific button is given consecutively as a request signal from a dial button 21 of a pushbutton telephone set 2, a dial data of a specific button is sent to a CPU 15 via an interface (INF) 12 and a data input/output interface (I/O INF) 14, the CPU 15 sends a control signal corresponding to the specific button to a trunk circuit (TK) 11 via the I/O INF 14 and the TK 11 uses the control signal to continue to send the dial signal corresponding to the specific button to the trunk line 3. Thus, since the transmission time of the dial signal from the key telephone master system 1 is changed optionally, the computer service by the telephone set having a different reception time of the dial signal is executed without any hindrance.
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