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International Telecommunications Union

The International Telecommunications Union, 150 years of history

Ever since the 17th May 1865, date on which the first telegraphic convention to manage the first international telegraphic networks was signed, the ITU has been at the centre of all communications related technological advances, from telegraph to satellites, the internet and mobile phones. 

The first international radio-telegraphic convention was held in Berlin in 1906, in particular to regulate wireless telegraphy, of which the first spectacular application was in the sea safety field. At the time, the first Radio-broadcasting Regulation (RR) only covered two wavelengths, 300 m and 600 m, used for maritime radio-communications. 

Two famous shipwrecks showed the effectiveness of marine radio:

  1. Thanks to a wireless call in 1909, 920 passengers were saved by the American coastguards when the Republic and the Florida collided.
  2. The Titanic used the SOS code for the first time in 1912: 700 people, or almost a third of the passengers, were rescued by several ships, including the Carpathia, which arrived on site one hour after the ship sank.

This conference established the “SOS” as the global marine distress signal. At the start of that century, the ITU had 29 member nations.

As a direct consequence of the First World War, the 20s experienced a high increase in both domestic and professional use of radio. It became necessary to list and organise frequency bands to improve efficiency and quality. To accompany this rapid growth, the 1927 Washington Conference resulted in the first frequency distribution table.  The frequency unit at the time was the kilocycle (it was only in 1959 that the Hertz became the frequency unit of measurement). In 1932, to better express the range of its responsibilities, the International telegraphic union became the International Telecommunications Union

In 1947, following the Atlantic City conference, the ITU became attached to the United Nations.  During this conference, which was held from 16th May to 2nd October 1947 (four and a half months), the frequency distribution table was completely revised, as the result of the progress in the uses of radio made during the Second World War and the beginning of the Cold War.   The end of the 60s marked the beginning of the first frequency assignments for space programmes (1968).

The very serious RR also provided for possible extra-terrestrial communications. Indeed, n° 5341 of RR article 5 recognises the SETI (Search for Extra-Terrestrial Intelligence programme. This American programme dating from the 60s, groups together projects of which the purpose is to detect signals an extraterrestrial life form might emit, whether deliberately or not, from its planet of origin.   The searches were located in the 1,400-1,727 MHz and 197-220 GHz bands.

Currently, the ITU has 193 member countries and some 700 private sector organisations. A long way from its first international telegraphy harmonisation works, today its actions cover the entire ICT sector, from digital broadcasting to the internet, including mobile technology and 3D television.  

To find out more:

The WRCs and the ITU-R study commissions

The ITU gathers together 193 member states. It is composed of three sectors: standardisation (ITU-T), telecommunications development (ITU-D) and radiocommunications (ITU-R). The ITU's objectives, structure, organisation and operation are governed by its constitution and its convention which are amended every four years during the plenipotentiary conferences. These two fundamental texts lay down the principles on which the Union is founded, in particular the role it is given to assign the radio spectrum frequency bands and record the uses of frequencies and orbital resources in order to avoid interference between member states.

It is the ITU-R's role to assign frequencies to radiocommunications services worldwide, coded in the Radiocommunications Regulations.

  •   The World Radiocommunications conferences (WRC) meet every three or four years to decide on the changes to be made to the Radiocommunications Regulations (RR) in order to adapt the existing framework to the spectrum needs to develop existing applications or introduce new applications. The RR splits the spectrum into frequency bands that are each assigned to one, or more generally several, radiocommunications services; the RR governs the use that these services can make of these bands.  The RR is a treaty that is binding on the public services that are members of the ITU. Each state has a national frequency plan that carries over and completes the relevant RR provisions for that State.
  •  The ITU-R study commissions, which are supervised by the radiocommunications assemblies that meet jointly with the world conferences, adopt Recommendations that tend towards a certain technical standardisation at the worldwide level. Some of these commission work groups are also in charge of preparing the items on the WRC conference agenda.
  • The Radiocommunications Regulations are the regulatory framework for the spectrum use that is applicable to all ITU member states. It is completed by a set of procedural rules which, when applicable, clarify certain obscure aspects or lift certain incoherences.

The ANFR’s action with the ITU

The Agency takes part in the preparatory works in the study commissions and in the ITU-R work groups and actions, in the CEPT groups and in the inter-regional meetings. It defends the French positions drawn up with the assignees and all the French players in the sector in question in the framework of the advisory commission for world radiocommunications conferences and the radiocommunications assembly advisory commissionn.

  • The WRCs, which last four weeks considering the number and complexity of the studies required by crowded agendas and the high economic stakes these decisions put into play, require much prior work. These are carried out within the ITU Radiocommunications sector (ITU-R) by its work and action groups, under the control of the Conference preparation meeting (CPM) which meets about six months prior to the WRC in order to finalise technical and regulatory studies in the form of a report and to identify options to fulfil the different items on the agenda. The purpose of this report is to help all ITU member states to make proposals during the Conference.
  • WRC preparation also occurs in the context of regional organisations (CEPT in Europe, CITEL for the Americas, APT for Asia-Pacific, RCC for the IEC countries, Arab League, UAT for Africa) and inter-regional organisations through exchanges between those organisations.

L'@anfr publie une analyse de toutes les mesures réalisées à la demande de particuliers entre juin et décembre 2018 pour évaluer l’exposition due aux compteurs Linky.

Télécharger le rapport ici 👉


L' @anfr recrute un(e): 👨‍💼👩‍💼

▶️Un(e) développeur:


L’@anfr était présente ce matin à la 2ème édition de Médias en Seine, le 1er festival qui réunit celles et ceux qui construisent les médias de demain. Notre DG @gillesbregant a participé aux discussions sur le plateau Média Lab de l'information. #Echanger #Imaginer #Avancer

#5G à 26 GHz et @Paris2024 : deux projets naturellement complémentaires @anfr

ANFR a Retweeté

Direction la @citedessciences pour la présentation des plateformes d’expérimentations #5G  dans la bande 26 GHz, la bande des fréquences « millimétriques » (la bande prochainement attribuée est « la 3.5 GHz ») ! @DGEntreprises @Anses_fr @anfr @GouvernementFR @BrunoMaquart @anfr

L’ANFR informe du retrait du marché et du rappel du téléphone ECHO HORIZON LITE 📱. Des mesures réalisées dans le cadre de la surveillance du marché des terminaux ont en effet mis en évidence des valeurs de DAS tronc dépassant la limite autorisée.


En septembre, 35 nouvelles stations #5G ont été autorisées par l’@ANFR dans le cadre des expérimentations organisées par l’@Arcep : 398 #stations 5G en France sont en test dans la bande 3,5 GHz au 1er octobre.



Le bilan des sites 4G mis en service en métropole au 1er octobre :

▶️ @orange (20 054 sites, + 203 en septembre 2019)
▶️ @SFR (18 025 sites, + 79)
▶️@bouyguestelecom (17 622 sites, + 62)
▶️@Free (13 636 sites, + 390)


[#ObservatoireANFR] 📱📊

Au 1er octobre 2019, 48 437 sites #4G sont autorisés par l' @ANFR, en France : découvrez l’étude complète sur l’évolution du déploiement des réseaux #mobiles en métropole et Outre-Mer.


L’@anfr a décidé d’expérimenter des capteurs autonomes large bande qui permettront d’apprécier en temps réel le niveau d’exposition dans les bandes 80 MHz - 6 GHz.

Déroulement ce matin du 4ème comité nationale de dialogue au sein de l’@anfr sur les niveaux d’exposition aux #ondes

#Recrutement 🧐

L' @anfr recrute un(e): 👨‍💼👩‍💼

▶️Un(e) chef(e) de projet intégration SI - Junior (H/F)


📱📶 L’ANFR publie son bilan du 1er semestre 2019 concernant les contrôles de DAS réalisés sur 46 téléphones portables prélevés dans des points de vente en France.

Consulter le bilan 👉

📢📚 Le #Rapport annuel de l’ANFR 2018 est en ligne sur le site

ANFR a Retweeté

#matinale #amifpartenaires @GdParisNotaires @MaunaTraikia ouvre la séance en détaillant les enjeux du #numérique pour les villes « le numérique est un accélérateur d’innovation, il permet de rendre plus accessibles nos politiques publiques» @anfr @OrangeIDF @SFR @bouyguestelecom

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