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IP voice call surveillance through use of non-dedicated IP phone with signal alert provided to indicate content of incoming call prior to an answer as being a monitored call

  • US 8,018,919 B2
  • Filed: 07/01/2008
  • Issued: 09/13/2011
  • Est. Priority Date: 08/18/1999
  • Status: Expired due to Fees
First Claim
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1. A method of monitoring an Internet protocol call in a network comprising:

  • determining if the Internet protocol call between a first communication device and a second communication device is to be monitored;

    locating an Internet protocol address of a third communication device and an identifier associated with one of the first communication device or the second communication device; and

    sending at least one data packet including an alert signal to an Internet protocol gateway serving the third communication device based on locating the Internet protocol address of the third communication device, the at least one data packet being associated with the Internet protocol call,wherein the third communication device is configured to be inactive until the first communication device and the second communication device of the Internet protocol call are connected and active.

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