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NGN is essentially a managed IP-based (i.e., packet-switched) network that supports a variety of high-speed data-intensive services including, IPTV, HDTV, videoconferencing, VoIP, Instant Messaging, e-mail, and other packet-switched communication services.

Historically the telecommunication networks have evolved from a simple telephone network into a multi-service field, with new services implemented either as add-on to existing networks or by creating separate, service-specific networks.

The technological advancements have facilitated separation of network, service and application layers.

This has brought in a new concept where different services can easily be launched on a common backbone, drastically reducing time and service provisioning cost. IP Networks have emerged as one of the acceptable options for use as backbone as they are robust, resilient and efficient.

The end-users are now being given unified services easily. This convergence of access network across the wireline, wireless and Internet domain is facilitating integrated billing, faster service provisioning and better customer relation management.

Another important aspect of NGN is that the access provider and service provider may be different, unlike the present scenario. For example, presently a wireless access provider also offers mobile services to its subscribers, whereas in NGN it will be possible that different services are provided by various service providers (such as voice service provider, video service provider, e-mail service provider, stock quotes provider, etc) on an access network provided by a particular access provider.

With the Next Generation Network, users may have one or many access providers providing access in a variety of ways, including cable, DSL, Wi-Fi, WiMAX, fibre, etc, into the NGN.

This may provide end users with virtually unlimited options to choose between service providers for voice, video, and data services.

More Stories on : Telecommunications | Convergence

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