The deployment of NGNs will create a great opportunity for new services offering, more integrated features, and a more extensible and flexible platform for future applications. NGN is a key area of study for ITU-T study groups. Based upon the Internet Protocol (IP), the convergence between public switched telephone network (PSTN), digital subscriber line (DSL), cable television (CATV), wireless local area network (WLAN) and mobile technologies is a task that many believe would be impossible without the development of global NGN standards.
The NGN concept takes account of a new situation in telecommunications, characterized by many factors: open competition between operators due to the deregulation of markets, explosion of digital traffic, e.g. due to the increasing use of the Internet, the demand from users for new multimedia services requiring higher bandwidth and the new user necessity for a generalized mobility.
ITU-T involvement in NGN started in early 2002. Since that time many workshops have been organized in order to widen the scope of ITUís work on IP-based networks and later on NGN and explore specific issues that impact both ITU and other standards developing organizations (SDOs). A Joint Rapporteur Group (JRG-NGN) initiated standardization work on NGN in September 2003 and the effort was later strengthened by the establishment of the focus group on NGN, in June 2004. Currently many ITU-T study groups are involved in NGN standardization work and SG13 is the Lead SG for NGN.
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