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 8619636 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 31, 2013

Filed:

May. 03, 2006
Applicant:

Falguni Sarkar, Redmond, WA (US);

Inventor:

Falguni Sarkar, Redmond, WA (US);

Assignee:

AT&T Mobility II LLC, Atlanta, GA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/16 (2006.01); H04Q 11/00 (2006.01); H04L 12/26 (2006.01); H04L 1/00 (2006.01); H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system, method, and apparatus for providing bandwidth efficient voice over internet protocol conference calls is disclosed. The system uses softswitches, also known as media gateway controllers, that can track active calls by recording information regarding those calls in the memory of the softswitches. Upon receipt of an instruction, at a softswitch, to issue an invitation to another party to join an existing call, the softswitch examines its table of call information to determine if the invitation should be issued from that softswitch or forwarded to another softswitch involved in the existing call. In this manner, the invitation can be issued by a softswitch involved in the existing call that is nearer to the invited party than would be the case with prior art methods. This avoids the transmission of redundant data and conserves bandwidth.


Find Patent Forward Citations

Sarkar, Falguni. (2013). Methods and systems for creating optimized transmission paths for voip conference calls (U.S. Patent No. 8619636). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8619636

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