Wikidata entity: P5688
| P1793 | format as a regular expression | String | [ADEFGHIJKLMNOPQRSTUVXYZ]\.\d+(\.\d+)?( \((0[1-9]|1[0-2])/(19|20)\d{2}\))? | ??? |
| P31 | instance of | ... | Q19847637 (Wikidata property for an identifier) | Wikidata property for an identifier |
| P2302 | property constraint | ... | Q19474404 (single-value constraint) | single-value constraint |
| P2302 | property constraint | ... | Q21502404 (format constraint) | format constraint |
| P2302 | property constraint | ... | Q21502410 (distinct-values constraint) | distinct-values constraint |
| P2302 | property constraint | ... | Q21503250 (subject type constraint) | subject type constraint |
| P2302 | property constraint | ... | Q52004125 (allowed-entity-types constraint) | allowed-entity-types constraint |
| P3254 | property proposal discussion | Url | Wikidata:Property proposal/ITU-T Recommendation - Wikidata | ??? |
| P1659 | related property | ... | P5686 (ITU-R Recommendation) | ITU-R Recommendation |
| P1896 | source website for the property | Url | ITU-T Recommendations | ??? |
| P1629 | Wikidata item of this property | ... | Q55935585 (ITU-T Recommendation) | ITU-T Recommendation |
| P1855 | Wikidata property example | ... | Q952898 (G.711) | G.711 |
| P1855 | Wikidata property example | ... | Q1065865 (X.509) | X.509 |
| P1855 | Wikidata property example | ... | Q26902004 (Recommendation T.70 (11/1988): Network-independent basic transport service for the telematic services) | Recommendation T.70 (11/1988): Network-independent basic transport service for the telematic services |
| P1855 | Wikidata property example | ... | Q27051333 (Recommendation E.165.1 (10/1996): Use of escape code "0" within the E.164 numbering plan during the transition period to implementation of NPI mechanism) | Recommendation E.165.1 (10/1996): Use of escape code "0" within the E.164 numbering plan during the transition period to implementation of NPI mechanism |
| P2264 | Mix'n'match catalog ID | 1760 |
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