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Method and system for identifying a party answering a telephone call based on simultaneous activity

  • US 7,184,521 B2
  • Filed: 06/10/2004
  • Issued: 02/27/2007
  • Est. Priority Date: 06/10/2004
  • Status: Active Grant
First Claim
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1. A method for detecting whether an automated device is currently providing audio on a telephone call, the method comprising:

  • establishing a telephone call between a calling party and a recipient;

    outputting a first audio signal from the calling party to the recipient of the telephone call;

    inputting a second audio signal from the recipient of the telephone call while outputting the first audio signal to the recipient, the second audio signal being different from the first audio signal;

    determining an amount of time during which the first audio signal and the second audio signal are both active by comparing the first audio signal and the second audio signal; and

    when the determined amount exceeds a threshold amount, indicating that an automated device is providing the second audio signal.

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