Amplified multichannel dense wavelength division multiplexing applications with single channel optical interfaces In force ...

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

New definitions for inclusion in Recommendation ITU-T P.10/G.100 In force ...

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 Superseded ...

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

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

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

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 ...

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