The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of
ITU. ITU-T is responsible for studying technical
ITU-T Y.2012-2006 history
2010ITU-T Y.2012-2010 Functional requirements and architecture of next generation networks (Study Group 13)
2006ITU-T Y.2012-2006 Functional requirements and architecture of the NGN release 1 Study Group 13