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Automatic and seamless vertical roaming between wireless local area network (WLAN) and wireless wide area network (WWAN) while maintaining an active voice or streaming data connection: systems, methods and program products

  • US 20070091845A1
  • Filed: 02/17/2006
  • Published: 04/26/2007
  • Est. Priority Date: 12/28/2000
  • Status: Active Grant
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1-24. -24. (canceled)

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