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Switching System Overload Control Generic Requirements

Document Number TR-NWT-001358
Issue Number 01
Issue Date Sep 1993
Replaces TA-NWT-001358 Issue01

    ABSTRACT: This document replaces TA-NWT-001358.

    This Technical Reference (TR) provides quantitative benchmarks on the overload controlled switching system throughput (i.e.,
    successfully processed call attempts), along with the quantitative description of the overload-related characteristics of offered
    traffic (traffic volume and customer behavior).

    These generic requirements supplement and enhance GR-505-CORE, LSSGR: Call Processing, Section 5, which stipulates that
    the primary objective of overload controls on a switching system is to maintain throughput of successful calls regardless of the extent
    or cause of the overload. A key requirement of this document is that the overload throughput should not fall below 90% of the
    engineered capacity, if the overload does not exceed 30% in terms of the first attempts.

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