Routing voice over internet (VoIP) call

Details Routing voice over internet (VoIP) call Routing voice over internet (VoIP) call

2011-01-18

2011-01-18

Moazzami, Nasser (Department: 2436)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular node for directing data and applying cryptography

C380S223000, C455S059000, C455S146000, C455S511000

Reexamination Certificate

active

07873826

ABSTRACT:
A method and system to rout a Voice over Internet Protocol (VoIP) call based on a service class of a subscriber enables efficient utilization of bandwidth by providing service corresponding to the subscriber service class, while enabling use of a Virtual Private Network (VPN) which provides security to a VoIP service. The method includes: determining a service class of a subscriber upon packet data being received from the subscriber; determining whether the received current packet is packet data to be routed over an encrypted network or a non-encrypted network, based on the service class of the subscriber; encrypting the received packet data with an encryption processor and then routing the encrypted packet data to a final destination with a router upon a determination that the received packet data is to be routed over the encrypted network; and directly routing the received packet data to the final destination with the router without encrypting the received packet data upon a determination that the received packet data is to be routed over the non-encrypted network without being encrypted.

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United Kingdom Office Action of the United Kingdom Patent Application No. GB0523966.0, mailed on Mar. 27, 2006.

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