The ITU-R Recommendations constitute a set of international technical standards developed by the Radiocommunication Sector (formerly CCIR) of the ITU. They are the result of studies undertaken by ...

As the world is welcoming its 8 billionth inhabitant, 5.3 billion people – or 66 per cent of the total global population – are online, while 2.7 billion are still offline [1]. At the same time, three ...

ITU’s Measuring digital development: Facts and Figures 2024 offers a snapshot of the most important ICT indicators, including estimates for the current year. This year’s edition shows that Internet ...

Cellular network connection indication, support for increased resolutions and mixed raster, T.45 RLCE, T.88, V.21 duplex operation (Annex K) and extended negotiations protocol (Annex L) Superseded ...

Former ITU-T Y.2221 renumbered as ITU-T Y.4105 on 2016-02-05 without further modification and without being republished. In force ...

Implementors' Guide for ITU-T Recommendation H.239 ("Role management and additional media channels for H.300-series terminals") Superseded ...

A man whose visionary ideas anticipated the space age, Sir Arthur C. Clarke died on 19 March 2008 in Colombo, Sri Lanka, at the age of 90. ITU pays tribute to his work. Arthur Charles Clarke was born ...

New Annex B - Use of data signal detection and silence insertion in voiceband data, and new Annex C on use of V.21 preamble for echo canceller control in a V.152 gateway Superseded ...

Implementors Guide for Recommendations of the H.320 System ("Narrow-band visual telephone systems and terminal equipment"):H.320, H.221, H.224, H.230, H.242, H.243 ...

One of the most important inventions of the twentieth century was broadcasting with analogue radio and television systems. The last few years, however, have seen the birth of digital broadcasting.

To regulate or not to regulate? Voice over Internet Protocol, or VoIP in short, is one of the most contentious issues now facing regulators as we enter 2005. Much of the debate revolves around whether ...

Timely warning of impending natural disasters, accurate climate prediction and detailed understanding of the status of global water resources — these are just some of the critically important ...