KnowraInternational Telecommunication UnionLinked fromLinked fromThe 12 pages that link to International Telecommunication Union, each with the reason it gives.All 12Related 8Narrower topic 1Compared with 3Radio spectrumRelated: Its conferences coordinate frequency use across national borders.Radio frequencyRelated: Its agreements help harmonize RF use across national borders.Coordinated Universal TimeRelated: Its radio regulations and conferences shaped the adoption and governance of UTC.Morse codeRelated: International agreements helped establish a common version of Morse code across borders.Leap secondRelated: Its conventions have governed the definition and coordination of leap seconds in UTC.International Electrotechnical CommissionRelated: ITU work overlaps IEC standardization in communications equipment and electromagnetic compatibility.Telephone numberRelated: It standardizes country calling codes through its E.164 recommendation.Satellite phoneRelated: Satellite-phone networks depend on international coordination of spectrum and orbital resources.