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Automatic telephone silent call screening system

  • US 6,456,706 B1
  • Filed: 08/22/2000
  • Issued: 09/24/2002
  • Est. Priority Date: 07/18/1997
  • Status: Expired due to Term
First Claim
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1. An improved screening device comprisingan input port for connecting to a telephone grid;

  • an output port for connecting to a telephone set;

    a display panel;

    a memory circuit;

    a processing circuit connected to the input port, to the output port, to the display panel, and to the memory circuit, wherein the processing circuit screens incoming telephone calls upon being set to do so and wherein the processing circuit deactivates screening of incoming telephone calls based upon a corresponding setting followed by an activation of the setting;

    wherein an emergency number is set in the processing circuit, wherein a telephone call called by a user of the telephone set made to the emergency number causes the processing circuit to deactivate the screening of connections to incoming telephone calls by activation of the setting.

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