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ITU
International Telecommunication Union
The ITU is the United Nations specialized agency for information and communication technologies. ITU standards (Recommendations) are fundamental to the operation of global telecommunications networks and services.
6
Doc Types
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Components
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Relations
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Stages
Document Types 6
Components 4
Structured elements that make up a ITU identifier:
Sector
EnumerationITU sector: R (Radiocommunication), T (Standardization), D (Development)
R (Radiocommunication)T (Standardization)D (Development)
Required. After hyphen following ITU.
e.g.
:sectorTSeries
EnumerationThe series letter (e.g., G, E, H, SA)
GEHIJLMN +9 more
Required. Follows sector, separated by dot.
e.g.
:seriesGNumber
StringThe recommendation number
Series-specific. Often includes dot-separated sub-numbers.
e.g.
992.1Year
YearPublication year
Optional. Preceded by hyphen.
e.g.
2019PubID Algebra 3
Relationships between ITU identifiers:
| Relation | Description | Syntax | Example |
|---|---|---|---|
| Amendment | Modifies a Recommendation | ITU-[Sector] [Series].[Number]/Amd [N] | ITU-T G.992.1/Amd 1 |
| Corrigendum | Corrects errors | ITU-[Sector] [Series].[Number]/Cor [N] | ITU-T G.992.1/Cor 1 |
| Supplement | Additional content | ITU-[Sector] [Series].[Number] Suppl [N] | ITU-T G.992.1 Suppl 1 |