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VOICE SERVICE IN EVOLVED PACKET SYSTEM

  • US 20110002268A1
  • Filed: 06/03/2010
  • Published: 01/06/2011
  • Est. Priority Date: 06/03/2009
  • Status: Active Grant
First Claim
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1. A method in a UE with a first indicator related to voice services in an Evolved Packet System (EPS), the method comprising:

  • receiving a first Non Access Stratum (NAS) protocol response message with a second indicator; and

    responsive to at least one of the first indicator or the second indicator, causing the UE to select to another radio access technology (RAT).

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