Circuit arrangement for telecommunications switching systems, pa

Details Circuit arrangement for telecommunications switching systems, pa Circuit arrangement for telecommunications switching systems, pa

1986-08-13

1989-01-31

Schreyer, Stafford D.

Telephonic communications

With usage measurement

Call charge metering or monitoring

H04M 1510

Patent

active

048022055

ABSTRACT:
Seizable connection-associated switching devices emit processing requests for incoming information to a central sequential logic system. Processing requests differ on the basis of different urgency degrees which are defined by type of appertaining, connection-associated switching devices. A limit value is set in an occupation non-acceptance device based on the measure of the momentary sequential logic system load. The processing request are rejected (or accepted) by way of a comparison of the respective urgency value to the limit value which is carried out by way of the occupation non-acceptance device, being rejected (or accepted) when the urgency value is lower (or greater) than the limited value. Connection-associated switching devices having the same urgency degree are combined in different urgency groups having different urgency subvalues on the basis of their addresses. Acceptance, as well as rejection, of seizures by the occupation non-acceptance device is also carried out according to these urgency subvalues whose mutual prioritization is cyclically interchanged in uniform time intervals.

REFERENCES:
patent: 3517123 (1970-06-01), Hare et al.
patent: 4497979 (1985-02-01), Phelan
patent: 4564725 (1986-06-01), Deisenberger
patent: 4649234 (1987-03-01), Jans
Telcom Report, 1981, pp. 1-83.

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