Public telephone station traffic analyzing arrangement

Details Public telephone station traffic analyzing arrangement Public telephone station traffic analyzing arrangement

1979-03-13

1981-04-21

Brigance, Gerald L.

179 8R, 179 7R, H04M 324

Patent

active

042634822

ABSTRACT:
An arrangement for traffic analysing for public telephone stations which are served from a telephone exchange. The exchange transmits charging pulses to the telephone stations through telephone subscriber's lines, when calls are requested from the telephone stations. A charging pulse counter is accessed through a charging pulse detector when a call is made. The counter counts the number of detected charging pulses during an observation period allocated to the calling telephone station. An analysis initializing circuit includes time recording data delivering means for periodically reading-out the charging pulse number in the counter and for resetting the counter after the observation period. A traffic analyzing circuit is connected selectively to charging pulse counters and compares the charging pulse number of each counter to at least two predetermined charging pulse number values specific to the telephone station at the end of each observation period allocated to the telephone station. The traffic analysing circuit produces a coded signal which indicates the abnormal operation type of said telephone station when the charging pulse number is greater than one or less than the other of the predetermined charging pulse number values specific to the telephone station or when the charging pulse number is equal to zero in order to deduce whether the station is out of service.

REFERENCES:
patent: 3760105 (1973-09-01), Puccini
patent: 3829618 (1974-08-01), Brandon
patent: 4039768 (1977-08-01), O'Maley
patent: 4085293 (1978-04-01), Karras
patent: 4103149 (1978-07-01), Linden
patent: 4124774 (1978-11-01), Zarouni
patent: 4124775 (1978-11-01), Zarouni
patent: 4165447 (1979-08-01), Bertoglio et al.

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