Next Generation Network

摘要

At present separate networks exist for voice, data, mobile, Internet etc. Over the years, network operators have been looking for a service independent network architecture which can facilitate rapid and economical introduction of new services. The explosion of the Internet and popularity of Internet multimedia services emphasized the need to shift towards packet based core networks from the present circuit-switched networks. NGN is envisaged to facilitate the convergence of voice, data and video networks into a single unified packet-based multi-service network capable of providing futuristic services. Converging voice, data and video services onto a common network infrastructure with a universal addressing scheme and mobility will provide unprecedented cost savings and performance advantages