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.

Date of Patent:
Nov. 21, 2017

Filed:

Apr. 06, 2015
Applicant:

Verizon Patent and Licensing Inc., Arlington, VA (US);

Inventors:

Gowtham Javaregowda, Waltham, MA (US);

Elliot G. Eichen, Arlington, MA (US);

Lee N. Goodman, Tyngsboro, MA (US);

Sujin Catherine Chang, Stow, MA (US);

Assignee:

Verizon Patent and Licensing Inc., Basking Ridge, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 7/00 (2006.01); H04L 29/06 (2006.01); H04L 29/12 (2006.01); H04M 7/12 (2006.01); H04W 36/00 (2009.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H04M 7/006 (2013.01); H04L 61/6013 (2013.01); H04L 65/1069 (2013.01); H04L 65/1073 (2013.01); H04L 65/1083 (2013.01); H04M 7/1285 (2013.01); H04W 36/0022 (2013.01); H04W 84/12 (2013.01);
Abstract

A mobile device identifies multiple, different networks available to a client resident on the mobile device, and sends multiple registration messages to an outbound proxy over the multiple, different networks via first, second and third communication interfaces. The mobile device determines whether access has been lost to a first network of the multiple different networks, and sends an invite message via the second communication interface, based on the determination, for an outbound call via a second network of the multiple, different networks for routing the outbound call via the second network.


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