TELEPHONE CALL SIMULATOR

摘要

Equipment is provided for the simulation of telephone calls on special test lines connected to a telephone exchange in order to check the proper routing of calls by the exchange under test. Operations are simulated and checked by connecting special test circuits to the test lines. Working characteristics of each test line are stored in a memory unit. A small computer processes all these memory units through fast exploration cycles and simultaneously a distributor-device controls operations of each test circuit on its associated test line and a testing device records corresponding signals in the exchange.