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Arrangement for the control of an echo canceller

  • US 5,450,487 A
  • Filed: 01/09/1995
  • Issued: 09/12/1995
  • Est. Priority Date: 11/04/1991
  • Status: Expired due to Term
First Claim
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1. A digital telephone exchange having echo cancellers integrated therewith, comprising:

  • a telephone exchange including a plurality of near end lines and a plurality of far end lines effectively served by a switching unit capable of providing transmission connections among selected plural ones of said plurality of near end lines and said plurality of far end lines;

    a call control computer operatively associated with said telephone exchange for controlling and monitoring operation of said telephone exchange;

    a plurality of echo cancellers at said telephone exchange, including a respective echo canceller series-connected to each of said plurality of far end lines;

    a control system at said telephone exchange for operating each of said plurality of echo cancellers and particularly for switching each of said plurality of echo cancellers on and off, said control system effectively connecting said plurality of echo cancellers with said call control computer for effecting control of operation of said echo cancellers by said call control computer.

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