Patent ID: 7873826
Filing Date: 2011-01-18
Classification: H04L,H04M

Abstract:
1. A system for routing a Voice over Internet Protocol (VoIP) call, the system comprising: a switching system comprising: a controller configured to manage call connection information and voice media processing; a subscriber information table configured to store service classes of VoIP subscribers; an input unit configured to receive voice media data and signaling data; an encryption processor configured to encrypt received packet data, which is designated as a subscriber service class, in response to a determination that the received packet data is to be encrypted, based on the service class of VoIP subscriber stored in the subscriber information table; and a router configured to rout a packet transferred via the input unit or via the encryption processor to a final destination address by referring to a routing table; and a VoIP terminal configured to communicate with the switching system, the VoIP terminal configured to be provided with a VoIP call service over a network according to the service class of VoIP subscriber, wherein the service class of VoIP subscriber comprises a service class in which signaling data and voice packet data are transmitted using different networks.