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.:

US 10440188 B1

Date of Patent:

Oct. 08, 2019

Filed:

Sep. 05, 2018

Techniques for providing location data in emergency calls

Applicant:

Bandwidth, Inc., Raleigh, NC (US);

Inventors:

Jay Slater, Superior, CO (US);

Larry Reeder, Denver, CO (US);

Assignee:

BANDWIDTH, INC., Raleigh, NC (US);

Attorney:

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Maria El-Zoobi

Int. Cl.

CPC ...

H04M 7/14 (2006.01); H04M 7/00 (2006.01); H04M 3/51 (2006.01); H04W 4/90 (2018.01); H04W 4/02 (2018.01); H04M 3/42 (2006.01);

U.S. Cl.

CPC ...

H04M 7/0075 (2013.01); H04M 3/42357 (2013.01); H04M 3/5116 (2013.01); H04W 4/023 (2013.01); H04W 4/90 (2018.02);

Abstract

Disclosed are techniques for handling emergency calls via an emergency call routing system. A Voice-over Internet Protocol (VoIP) emergency call server may be configured to receive a session initiation protocol (SIP) INVITE for an emergency call from a telephone number serviced by a telecommunication service provider (TSP) SIP call server. The SIP INVITE message header may include multiple location objects including a registered geo-coded address location object associated with the telephone number placing the emergency call, and a location object comprised of lat-long coordinates determined at the time the emergency call is placed. The emergency call server may determine whether the registered geo-coded address and the lat-long coordinates are within a specified distance of one another. When the registered geo-coded address and the lat-long coordinates are within a specified distance of one another, the emergency call server may use the geo-coded address as the location object when handling the emergency call. However, when the registered geo-coded address and the lat-long coordinates are not within a specified distance of one another, the emergency call server may use the lat-long coordinates as the location object when handling the emergency call.

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