A Next-Generation Network (NGN) is the term given to describe a telecommunications packet-based network that handles multiple types of traffic (such as voice, data, and multimedia).
It is the convergence of service provider networks that includes the public switched telephone network (PSTN), the data network (the Internet), and, in some instances, the wireless network as well.
According to ITU, "A NGN is a packet-based network able to provide Telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies."
"It enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users."
NGN is IP Centric, Single Converged Network.
The key aspects of NGN:
Surely NGN is a kind of network which all users and service providers would love to have.
It is the convergence of service provider networks that includes the public switched telephone network (PSTN), the data network (the Internet), and, in some instances, the wireless network as well.
According to ITU, "A NGN is a packet-based network able to provide Telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies."
"It enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users."
NGN is IP Centric, Single Converged Network.
The key aspects of NGN:
- It is a Packet-switched IP based network. It may use IPv6.
- One network – many services.
- It has Support for a wide range of services, applications and mechanisms based on service building blocks (including real time/ streaming/ non-real time services and multi-media).
- It has Broadband capabilities with end-to-end QoS and transparency.
- It has interworking with legacy networks via open interfaces.
- It offers generalised mobility.
- It offers Unristricted access by users to different service providers. That means one user can have more than one service providers.
- It has a variety of identification schemes which can be resolved to IP addresses for the purposes of routing in IP networks.
- Unified service characteristics for the same service as perceived by the user.
- It offers converged services between Fixed and Mobile networks.
- It has independence of service-related functions from underlying transport technologies.
- It offers support of many last mile technologies.
- Compliant with all Regulatory requirements, for example concerning emergency communications and security/privacy, etc.
- It offers bundling of services. Bundling refers to the sale of a number of services combined in a single price package.
- Possibility that customers can obtain a single service without taking or paying for the other services in the bundle.
- For the client bundling often has the advantage in that prices are lower compared to having to subscribe to each service individually, however customers may not want all the services offered in a bundle.
- It will end the use of single purpose network. Because NGN is multipurpose network.
Surely NGN is a kind of network which all users and service providers would love to have.
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