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System, method, and apparatus for using alternative numbers for routing voice calls and short messages in a communications network

  • US 8,634,800 B2
  • Filed: 03/19/2013
  • Issued: 01/21/2014
  • Est. Priority Date: 05/18/2007
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving a call to an enterprise network routing number wherein the enterprise network routing number is associated with the destination mobile device;

    processing the call via at least one of a carrier gateway server (GS-C) and an enterprise gateway server (GS-E);

    automatically re-routing the call from the enterprise network to a destination mobile device operating in the mobile network based on predefined routing criteria stored in at least one of the GS-C and the GS-E;

    detecting landline call routing services have been interrupted due to an emergency event prior to re-routing the call; and

    setting the predefined routing criteria of the GS-C and the GS-E to an emergency mode of operation responsive to identifying the emergency event;

    wherein the emergency event comprises one or more landline networks not being available.

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