Method and apparatus for establishment and management of voice-over IP virtual private networks in IP-based communication systems
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United States of America Patent
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Feb 3, 2009
Grant Date -
Mar 31, 2005
app pub date -
Sep 30, 2003
filing date -
Sep 30, 2003
priority date (Note) -
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Abstract
Establishing voice calls in an IP based VPN includes determining the relative location of a terminating point with respect to an originating point of a new communication containing the voice data, determining one or more IP addresses to egress the communication from the originating point to the terminating point, creating a VPN identifier in the new communication, passing the new communication to the terminating point and removing the VPN identifier from the new communication. The VPN identifier can be an extra field added to an encapsulation coding scheme of the voice data.
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