ITU is holding its 100th Radio Regulations Board meeting — a significant milestone in global spectrum governance.

New climate pledges ahead of COP30 outline each country’s commitment to climate resilience. Check out ITU's newly-released ...

Facts and Figures 2025 offers a snapshot of the most important ICT indicators, including estimates for the current year.

ITU explores a collaborative approach to secure telephone networks for combating fraudulent communications with digital certificates.

Recently posted - Search Recommendations P.1199 : Parametric object-recognition-ratio-estimation model for remote monitoring of surveillance video delivered from autonomous vehicles ...

This amendment was never published separately; its content has been included in the published Rec. ITU-T P.1203 (2016). Superseded ...

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This document corresponds to G.722 Appendix II which was published in Blue Book (1988). It includes one diskette containing the digital test sequences for the verification of the G.722 SB-ADPCM codec ...

Your gateway to a wealth of information about ITU’s history: facts, figures, lists, dates, and a growing selection of digitized documents. Search the History Portal ...

Revised Annex A: Clarification and explanation of the structure and function of international ITU-T E.164-numbers In force ...

This Recommendation includes 1 CD-ROM containing the software tools library (STL-2000). The STL-2000 Manual is freely available from ITU-T website for information purpose Superseded ...