| 摘要 |
PURPOSE:To enable to use a sender section used conventionally, by selecting a sender circuit according to a test code to be set at the transmission of test call and connecting the sender circuit to the test trunk. CONSTITUTION:When a general subscriber SUB hooks up a handset, a vacant outgoing register trunk ORT is selected and connected in a path (a). When the SUB dials, a trunk TRK according to the figures of the dial is selected. Next, a vacant dial pulse sender DPOST is selected and connected to the trunk TRK in the path b. When the dialing is finished for reception, the outgoing register trunk ORT is restored. The dial pulse sender DPOST transmits the number corresponding to the trunk TRK. When this transmission is finished, the path b is restored and the SUB and the trunk TRK are connected with a new path c. |
