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ABOUT ITU-T
The International Telecommunication Union (ITU) is the United
Nations specialized agency in the field of telecommunications,
information and communication technologies (ICTs). The ITU
Telecommunication Standardization Sector (ITU-T) is a permanent
organ of ITU. ITU-T is responsible for studying technical, operating
and tariff questions and issuing Recommendations on them with
a view to standardizing telecommunications on a worldwide basis.
The World Telecommunication Standardization Assembly (WTSA),
which meets every four years, establishes the topics for study by
the ITU T study groups which, in turn, produce Recommendations
on these topics.
The approval of ITU-T Recommendations is covered by the procedure
laid down in WTSA Resolution 1.
In some areas of information technology which fall within ITU-T’s
purview, the necessary standards are prepared on a collaborative
basis with ISO and IEC.