Although there is a significant amount of work underway in standardisation forums on NGN, at the
policy level, there is a still not complete agreement on a specific definition of “NGNs”.The term is
generally used to depict the shift to higher network speeds using broadband, the migration from the PSTN
to an IP-network, and a greater integration of services on a single network, and often is representative of a
vision and a market concept. From a more technical point of view, NGN is defined by the International
DSTI/ICCP/CISP(2007)2/FINAL
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Telecommunication Union (ITU) as a “
packet based network able to provide services including
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.” NGN
offers access by users to different service providers, and supports “generalized mobility which will allow
consistent and ubiquitous provision of services to users.”
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NGN, also defined as “broadband managed IP networks”, includes next generation “
core” networks,
which evolve towards a converged IP infrastructure capable of carrying a multitude of services, such as
voice, video and data services, and next generation “access” networks, i.e. the development of high-speed
local loop networks that will guarantee the delivery of innovative services.
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