| 摘要 |
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.
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