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Determination by PSAPs of caller location based on the WiFi hot spots detected and reported by the caller's device(s)

  • US 9,648,479 B2
  • Filed: 12/29/2014
  • Issued: 05/09/2017
  • Est. Priority Date: 11/14/2011
  • Status: Active Grant
First Claim
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1. A mobile communications device comprising:

  • a processor;

    a memory;

    a caller identification (ID); and

    a wireless network emergency application running on the mobile communications device that receives a first location information for the mobile communications device based on a first plurality of wireless access points that have or have acquired the first location information, wherein the mobile communications device has no Global Positioning Service (GPS) connectivity and no cellular connectivity, the wireless network emergency application including the first location information in at least one of a Session Initiation Protocol (SIP) message and a Service Set Identifier (SSID) field, the caller ID usable for a first routing of a 911 communication to a first Public Safety Answering Point (PSAP) associated with the caller ID, and the first location information usable for a rerouting of the 911 communication to a second PSAP associated with the first location information;

    the wireless network emergency application further receiving a second location information for the mobile communications device from a second plurality of wireless access points, the second location information including floor information, wherein the second location information is dynamically updated based on one or more of the second plurality of wireless access points, and wherein the second location information is usable by first responders to assist with determining a caller'"'"'s location.

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