Patent
1983-06-06
1985-04-16
Schreyer, Stafford D.
179 18EB, H04M 1510, H04M 328
Patent
active
045117624
ABSTRACT:
A method and apparatus for detecting and managing overloads in a telecommunications exchange having a central processor for controlling certain operations of the exchange, line/trunk groups connected to the central processor which include telecommunication trunks and/or subscriber lines, and a switching network connected to the central processor and to the line/trunk group which enables telecommunication trunks and/or subscriber lines to communicate with one another. The exchange also includes apparatus for sending a message to the central processor whenever the telecommunication trunks and/or subscriber lines are to communicate with one another, and apparatus for the central processor to receive the message and send a responsive message back to the line/trunk group. Detection of the system overload is based upon the time for the central processor to send a responsive message to the line/trunk group, and management of this overload is accomplished by the line/trunk group changing between operational levels in response to the measured time.
REFERENCES:
patent: 4165447 (1979-08-01), Bertoglio et al.
patent: 4192973 (1980-03-01), Williams et al.
Milde Jr. Karl F.
Schreyer Stafford D.
Siemens Corporate Research & Support, Inc.
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