Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system
Patent
1985-12-23
1987-07-14
Schreyer, Stafford D.
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of centralized switching system
H04M 328
Patent
active
046807845
ABSTRACT:
With the aid of a traffic simulator telephone exchanges can be tested, the simulator imitating the traffic conditions in the exchange. To that end, the traffic simulator of the invention comprises, in addition to circuit means for simulating subscriber and line behavior, a program-controlled control arrangement connected thereto which generates random variables such as call distances, call durations and reaction periods, controls the test run and checks the reactions of the exchange, and also mixes the exchange-technical parameters. To obtain a realistic picture of the traffic conditions, a plurality of subscriber and line simulation are provided which are changeable in dependence on the reaction of the exchange. On the basis of the exchange reaction (signifying an event) a realistic picture of the external conditions of the exchange are obtained by linking such reactions with random variables and event instants.
REFERENCES:
Exchange Traffic Simulator, G. Conroy and J. Davis, Telecommunications Journal Australia, vol. 30, No. 2, 1980, pp. 141-145.
Lehnert Ralf
Lempennau Wolfram
Tran-Gia Phuoc
Briody Thomas A.
Oisher Jack
Schreyer Stafford D.
Streeter William J.
U.S. Philips Corporation
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