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:
Nov. 09, 2010
Filed:
Mar. 01, 2004
Siroos K. Afshar, Englishtown, NJ (US);
Cameron Scott Blandford, Newport News, VA (US);
Alireza Faryar, Fair Haven, NJ (US);
Burwell Goode, Weston, CT (US);
Behzad Nadji, Los Gatos, CA (US);
Radhika R. Roy, Howell, NJ (US);
Siroos K. Afshar, Englishtown, NJ (US);
Cameron Scott Blandford, Newport News, VA (US);
Alireza Faryar, Fair Haven, NJ (US);
Burwell Goode, Weston, CT (US);
Behzad Nadji, Los Gatos, CA (US);
Radhika R. Roy, Howell, NJ (US);
AT&T Intellectual Property II, L.P., Reno, NV (US);
Abstract
In order to provide a single common cost-efficient architecture for real time communication services for audio, video, and data over internet protocol, a voice over internet protocol (VoIP) system and architecture is provided by placing border elements (BEs) at the interface boundaries between the access network the user devices use and the VoIP infrastructure. The BEs use SIP protocol as the access call control protocol over any access networking technologies, for example, IP, Ethernet, ATM, and FR, and provides all services transparently to the end users that use SIP-enabled devices. To enable a scalable system, the SIP BEs are decomposed into separate communicating entities that make the SIP BE scalable and provide new capabilities not previously available by a self-contained SIP BE. Further, multiple levels of decomposition of a SIP BE can be provided by the present invention supporting a flexible and scalable SIP BE design that further improves system efficiencies and cost advantages as compared to use of single integrated border or edge elements. Further, a scalable SIP BE, made up of a plurality of physical entities for optimization of a large scale design, acts as a single integrated functional entity to logically execute a set of functions at the border of a VoIP infrastructure.