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:
Jan. 27, 2015
Filed:
Jan. 11, 2008
Applicants:
Henry Chen, Plano, TX (US);
Michael Mcclung, Advance Mills, VA (US);
Haiyun Zhang, Plano, TX (US);
Yew Kuan Choo, Plano, TX (US);
Inventors:
Henry Chen, Plano, TX (US);
Michael McClung, Advance Mills, VA (US);
Haiyun Zhang, Plano, TX (US);
Yew Kuan Choo, Plano, TX (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/66 (2006.01); H04L 12/16 (2006.01); H04L 29/06 (2006.01); H04L 12/927 (2013.01); H04L 12/18 (2006.01); H04M 3/58 (2006.01); H04M 3/42 (2006.01); H04M 3/54 (2006.01); H04W 8/24 (2009.01); H04W 4/16 (2009.01);
U.S. Cl.
CPC ...
H04L 29/06 (2013.01); H04L 65/1069 (2013.01); H04L 47/806 (2013.01); H04L 65/1006 (2013.01); H04L 65/1093 (2013.01); H04L 12/18 (2013.01); H04M 3/58 (2013.01); H04M 3/42 (2013.01); H04M 3/54 (2013.01); H04W 8/24 (2013.01); H04W 4/16 (2013.01);
Abstract
In one embodiment, a distributed, dynamic and call based feature controller election is executed in a distributed call processing system which is simple, robust, and consistent. The election is based on which VOIP telephone returns an appropriate SIP message first to a feature controller elector, which may be implemented on a proxy communicating with a wide area network.