Method of controlling a telecommunications network using call ga

Details Method of controlling a telecommunications network using call ga Method of controlling a telecommunications network using call ga

1993-12-27

1996-04-16

Hofsass, Jeffery

Telephonic communications

Plural exchange network or interconnection

Connection call model

379270, 379113, H04M 700

Patent

active

055090630

ABSTRACT:
In a telecommunications network, such as the public switched telephone network, account must be taken of faults which can occur in the network. For instance, on occurrence of a local exchange failure, it is known to apply control such as route gapping and code blocking. The invention is concerned with detection of failure of a local exchange (116, 118) in a communications network. It relies on a combination of parameters, each parameter in the combination having to meet predetermined criteria. In particular, a local exchange failure is recognized when the Bids per Circuit per Hour (BCH) along selected traffic routes exceed a first threshold and the magnitude of a decrease in the average Answer Seizure Ratio (ASR) on selected traffic routes exceeds a second threshold. Controls might be applied to parent or far-end trunk exchanges, and can be removed when the ASR and Percentage Occupancy (OCC) meet further criteria.

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