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:
Apr. 28, 2015

Filed:

Sep. 09, 2013
Applicant:

At&t Intellectual Property I, L.p., Atlanta, GA (US);

Inventors:

Richard L. Khan, San Ramon, CA (US);

Chaoxin Qiu, Austin, TX (US);

Robert F. Dailey, Austin, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/16 (2006.01); H04W 4/00 (2009.01); H04M 11/04 (2006.01); H04W 24/00 (2009.01); H04L 29/08 (2006.01); H04L 12/66 (2006.01); H04W 4/02 (2009.01); H04L 29/06 (2006.01); H04W 48/04 (2009.01); H04W 64/00 (2009.01);
U.S. Cl.
CPC ...
H04L 29/08657 (2013.01); H04W 48/04 (2013.01); H04L 12/66 (2013.01); H04W 4/02 (2013.01); H04W 64/00 (2013.01); H04L 65/1096 (2013.01); H04L 67/18 (2013.01);
Abstract

An example method stores a nomadic service designator and an operating mode designator in association with a public user identifier. The nomadic service designator indicates whether an IP device is allowed to access VoIP services from different network locations. The public user identifier facilitates establishing a call with the IP device. The operating mode designator indicates when the IP device is in a suspended operating mode and an unrestricted mode. The suspended operating mode restricts the IP device to a subset of communication services associated with a service subscription of the IP device, and to a 911 service. The unrestricted operating mode is based on a registered geographic location associated with the IP device being a current geographic location of the IP device, and is based on a service provider being able to provide an E911 service including a location-identification service at the current geographic location of the IP device.


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