Emmanuel A Sam

US Patent:

7983269, Jul 19, 2011

Filed:

Mar 4, 2009

Appl. No.:

12/397740

Inventors:

Kwok T. Fung - Marlboro NJ, US
Denny Ko - Marlboro NJ, US
Emmanuel K. Sam - East Orange NJ, US
Fang Wu - Holmdel NJ, US
Eberhard F. Wunderlich - Aberdeen NJ, US

Assignee:

AT&T Intellectual Property II, L.P. - Atlanta GA

International Classification:

H04L 12/56

US Classification:

3703951, 726 15

Abstract:

The presently disclosed architecture enables a service provider to support public voice VPN services over an IP VPN network. The architecture utilizes a customer VPN, a designated gateway for the customer VPN, an IP VPN transport network, and a Call Control Element/router Complex which uses IP technology to map between the IP VPN and the voice VPN. With such an arrangement, the customer VPN is extended to the gatekeeper of the Call Control Element/router Complex, thereby enabling the provision of voice VPN services over an IP network.

US Patent:

7533410, May 12, 2009

Filed:

Sep 6, 2001

Appl. No.:

09/948268

Inventors:

Kwok T. Fung - Marlboro NJ, US
Denny Ko - Marlboro NJ, US
Emmanuel K. Sam - East Orange NJ, US
Fang Wu - Holmdel NJ, US
Eberhard F. Wunderlich - Aberdeen NJ, US

Assignee:

AT & T Corp. - New York NY

International Classification:

H04L 29/00

US Classification:

726 15, 726 14, 713150, 713153, 379900, 379901, 370351

Abstract:

The presently disclosed architecture enables a service provider to support public voice VPN services over an IP VPN network. The architecture utilizes a customer VPN, a designated gateway for the customer VPN, an IP VPN transport network, and a Call Control Element/router Complex which uses IP technology to map between the IP VPN and the voice VPN. With such an arrangement, the customer VPN is extended to the gatekeeper of the Call Control Element/router Complex, thereby enabling the provision of voice VPN services over an IP network.