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Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN

recommendation/international standard from the International Telecommunication Union
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Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN

Summary

Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN is an ITU-T recommendation version[1].

Key Facts

  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's instance of is recorded as Characteristics and protocols for terminals for telematic services in ISDN — instance of (P31): ITU-T recommendation version[2].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's publisher is recorded as Characteristics and protocols for terminals for telematic services in ISDN — publisher (P123): ITU Telecommunication Standardization Sector[3].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's edition number is recorded as 11/1988[4].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's language of work or name is recorded as Characteristics and protocols for terminals for telematic services in ISDN — language of work or name (P407): English[5].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's publication date is recorded as +1988-11-25T00:00:00Z[6].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's official website is recorded as https://www.itu.int/rec/T-REC-T.90-198811-S/en[7].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's work available at URL is recorded as https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-T.90-198811-S!!PDF-E&type=items[8].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's number of pages is recorded as {'unit': '1', 'amount': '+36'}[9].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's standards body is recorded as Characteristics and protocols for terminals for telematic services in ISDN — standards body (P1462): International Telecommunication Union[10].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's title is recorded as Characteristics and protocols for terminals for telematic services in ISDN[11].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation E.164 (11/1988): Numbering plan for the ISDN era[12].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation F.161 (10/1984): International facsimile service between subscribers with group 4 terminals (FAX 4)[13].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation F.200 (11/1988): Teletex service[14].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.122 (11/1988): Framework for providing additional packet mode bearer services[15].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.1 (11/1988): Teleservices supported by an ISDN: Telephony[16].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.2 (11/1988): Teleservices supported by an ISDN: Teletex[17].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.3 (11/1988): Teleservices supported by an ISDN: Telefax 4[18].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.4 (11/1988): Teleservices supported by an ISDN: Mixed mode[19].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.5 (11/1988): Teleservices supported by an ISDN: Videotex[20].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.6 (11/1988): Teleservices supported by an ISDN: Telex[21].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.241.7 (11/1988): Teleservices supported by an ISDN: Telephony 7 kHz teleservice[22].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.251.1 (11/1988): Number identification supplementary services: Direct-Dialling-In (DDI)[23].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.251.2 (11/1988): Number identification supplementary services: Multiple Subscriber Number (MSN)[24].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.251.3 (11/1988): Number identification supplementary services: Calling Line Identification Presentation (CLIP)[25].
  • Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's cites work is recorded as Characteristics and protocols for terminals for telematic services in ISDN — cites work (P2860): Recommendation I.251.4 (11/1988): Number identification supplementary services: Calling Line Identification Restriction (CLIR)[26].

Body

Authorship and Creation

Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's publisher is recorded as Characteristics and protocols for terminals for telematic services in ISDN — publisher (P123): ITU Telecommunication Standardization Sector[3].

Publication

Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN's publication date is recorded as +1988-11-25T00:00:00Z[6]. Its language of work or name is recorded as Characteristics and protocols for terminals for telematic services in ISDN — language of work or name (P407): English[5].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . wikidata.org.
  25. [26] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN. Retrieved May 3, 2026, from https://4ort.xyz/entity/recommendation-t-90-11-1988-characteristics-and-protocols-for-terminals-for-telematic-services-in-isdn
MLA “Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/recommendation-t-90-11-1988-characteristics-and-protocols-for-terminals-for-telematic-services-in-isdn.
BibTeX @misc{4ortxyz_recommendation-t-90-11-1988-characteristics-and-protocols-for-terminals-for-telematic-services-in-isdn_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN}}, year = {2026}, url = {https://4ort.xyz/entity/recommendation-t-90-11-1988-characteristics-and-protocols-for-terminals-for-telematic-services-in-isdn}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Recommendation T.90 (11/1988): Characteristics and protocols for terminals for telematic services in ISDN — https://4ort.xyz/entity/recommendation-t-90-11-1988-characteristics-and-protocols-for-terminals-for-telematic-services-in-isdn (retrieved 2026-05-03)

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