Next Generation Network Standards in ITU-T

ITU-T, the global standard organization in telecommunication area, is developing standards for next generation networks. These standard activities already started, but major focus was given to Focus Group on NGN which launched at June 2004 and finished at November 2005. This paper is a kind of key summary report of NGN standard development mainly based on FGNGN deliverables and some updates which taken from the 1st NGN-GSI event at this January 2006. ITU-T NGN standards are covering many of aspects; this paper focuses on requirements, functional architecture, quality of services and resource control issues.