The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Jun. 12, 2015
Applicant:
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Inventors:
Joseph Dahan, Redmond, WA (US);
Michal Cwian, Kirkland, WA (US);
Assignee:
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 11/04 (2006.01); H04W 4/22 (2009.01); H04W 76/00 (2009.01); H04W 36/00 (2009.01); H04W 36/14 (2009.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H04W 4/22 (2013.01); H04W 36/0011 (2013.01); H04W 76/007 (2013.01); H04W 36/14 (2013.01); H04W 84/12 (2013.01);
Abstract
A system and method for transferring e911 calls between a 3GPP network and a non-3GPP network. The method includes connecting an emergency communication between a mobile device and an emergency service, receiving, from the mobile device, an indication to handoff the communication from a first network to a second network; and transferring the communication from the first network to the second network while maintaining continuity of the communication.