Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2011-07-19
2011-07-19
Vu, Thong (Department: 2471)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C726S015000
Reexamination Certificate
active
07983269
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.
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Fung Kwok T.
Ko Denny
Sam Emmanuel K.
Wu Fang
Wunderlich Eberhard F.
AT&T Intellectual Property II L.P.
Vu Thong
LandOfFree
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