Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent
1986-05-22
1987-04-14
Rubinson, Gene Z.
Telephonic communications
With usage measurement
Call charge metering or monitoring
379138, H04M 336
Patent
active
046580980
ABSTRACT:
Call-associated series of information-processing requests, accepted in decentralized switching facilities, are composed of initial switch identifiers which arrive first and of successor switch identifiers arrive following thereupon and are transmitted to a central switch mechanism from the switching facilities which are present in a greater plurality. A measuring device which continuously determines the loadability of a switching circuit periodically and continuously adjust the comparison standard of a counter, which only counts the initial switch identifiers in successfully following time intervals, perceives a pending overload situation for the switching circuit on the basis thereof and, in order to avoid the same, transmits non-acceptance data to the switching facilities in which, a portion of the received occupations are subjected to non-acceptance in accordance with accordingly stored non-acceptance rates. After a rest interval of the non-acceptance events due to a temporarily lower load, initialization of a renewed formation and transmission of the non-acceptance data occurs on the basis of the threshold pertaining to the number of initial switch identifiers incoming to the switching circuit per time unit, this threshold being continuously adjusted by way of measured loadability results which are derived in measuring time intervals which compensate unsteady low fluctuations from full load, actual load and actual numbers of initial switch identifiers per measuring time interval.
REFERENCES:
patent: 4399332 (1983-08-01), Furlan et al.
patent: 4603233 (1986-07-01), Englert et al.
Rubinson Gene Z.
Schuster David R.
Siemens Aktiengesellschaft
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