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:
May. 20, 2014

Filed:

Jul. 16, 2013
Applicant:

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

Inventors:

L. Anders Brownworth, Cambridge, MA (US);

Jared Kashimba, Micanopy, FL (US);

Timothy Jones, Cary, NC (US);

Sai Rathnam, Raleigh, NC (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

A communication session between a first communication device and a second communication device is hosted in an Internet Protocol (IP) based packet data network. A contact server functions as a bridge service between the first communication device and the second communication device. A communication link between the first communication device and the contact server or the second communication device and the contact server is initially a voice-over IP (VoIP) communication link over a wireless data network. The contact server analyzes a call quality characteristic of the VoIP communication link and causes the communication device having the VoIP communication link to handoff the VoIP communication link from the wireless data network to a cellular communication link on a cellular network when the analyzed call quality characteristic of the VoIP communication link crosses a threshold level. Other embodiments describe handing off from a cellular communication link to VoIP communication link.


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