NGN (Next Generation Networks) is a packet-based network where the packet switching and network elements such as routers, switches, and gateways are logically and physically separated from the service/call control intelligence. The control intelligence is used to support different types of services over the packet-based network, ranging from basic voice telephony services to data, video, multimedia, advanced broadband, and management applications. As a matter of fact the NGN seeks to integrate the telephony world that uses centralised intelligence and the internet world that uses intelligence driven by CPE to come with distrubuted intelligence network.
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