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

If you are staying at a hotel, youth hostel or campsite in Geneva, the establishment may offer a "Geneva Transport Card", which gives free access to public transport in Geneva. Get more information ...

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 ...

Unless specified otherwise, registration to ITU-R events requires the approval of the corresponding Designated Focal Points (DFP) for ITU-R event registration. Read more on registration to ITU-R ...

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 The STL-2000 Manual is freely available from ITU-T website for information purpose Superseded ...

Revised Appendix I - Coefficients in video quality estimation function with respect to coding and packet-loss degradations Superseded ...

The file originally posted on 6.8.18 were replaced in February 2019 to indicate 2019 as ISO publication year. Superseded ...

The zip file containing the Word versions of Rec. ITU-T X.680 (2015) | ISO/IEC 8824-1:2015 to Rec. ITU-T X.693 (2015) | ISO/IEC 8825-4:2015 can be found at: http ...

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