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Method and apparatus for tracing a specific communication

  • US 5,930,344 A
  • Filed: 10/14/1997
  • Issued: 07/27/1999
  • Est. Priority Date: 10/14/1997
  • Status: Expired due to Term
First Claim
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1. A method of tracing the route of an in-progress call in a public switched telephone network having a communications switch with buffers storing information about calls in the network, comprising the steps of:

  • sending a set of search criteria related to the in-progress call to the communications switch;

    searching information in the communications switch buffers to locate information related to the in-progress call; and

    reporting the results of the search, including results that allow the route of the in-progress call to be traced, out of the communications switch while the call is still in-progress.

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