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Support of voice call continuity (VCC) for wireless emergency calls

  • US 20100124897A1
  • Filed: 12/30/2008
  • Published: 05/20/2010
  • Est. Priority Date: 01/04/2008
  • Status: Active Grant
First Claim
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1. A method to support Voice Call Continuity (VCC) for emergency calls in a wireless access environment, comprising:

  • receiving, at a serving domain, a message containing emergency and domain transfer information from a user equipment (UE);

    determining a need for emergency call origination or domain transfer based on the emergency and domain transfer information; and

    performing the emergency call origination or the domain transfer based on the determining.

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