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Emergency group calling across multiple wireless networks

  • US 20080064364A1
  • Filed: 08/09/2007
  • Published: 03/13/2008
  • Est. Priority Date: 08/09/2006
  • Status: Abandoned Application
First Claim
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1. An apparatus for providing emergency group calling services in a wireless network, comprising:

  • a plurality of wireless networks for making calls between mobile units, wherein the calls are initiated by call setup and in-band signaling within the wireless networks and voice or text messages are switched between the mobile units across bearer paths within the wireless networks; and

    each of the wireless networks including a real-time exchange for providing emergency group calling services therein, wherein both the real-time exchange and the mobile units that use the emergency group calling services communicate with each other using the call setup and in-band signaling within the wireless networks, and the real-time exchange switches the voice or text messages for the emergency group calling services from an originating mobile unit to all terminating mobile units across the bearer paths in the wireless networks;

    wherein the emergency group calling services comprise mass outbound (MO) voice or text messages sent from the originating mobile unit to all terminating mobile units in response to a single invocation by the originating mobile unit.

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