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RFC 2543: SIP: Session Initiation Protocol

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RFC 2543: SIP: Session Initiation Protocol

Summary

RFC 2543: SIP: Session Initiation Protocol is a Request for Comments[1].

Key Facts

  • RFC 2543: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Henning Schulzrinne[2].
  • RFC 2543: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Jonathan Rosenberg[3].
  • RFC 2543: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Mark Handley[4].
  • RFC 2543: SIP: Session Initiation Protocol's instance of is recorded as SIP: Session Initiation Protocol — instance of (P31): Request for Comments[5].
  • RFC 2543: SIP: Session Initiation Protocol was published by SIP: Session Initiation Protocol — publisher (P123): Internet Engineering Task Force[6].
  • RFC 2543: SIP: Session Initiation Protocol's language of work or name is recorded as SIP: Session Initiation Protocol — language of work or name (P407): English[7].
  • RFC 2543: SIP: Session Initiation Protocol was released on March 1, 1999[8].
  • RFC 2543: SIP: Session Initiation Protocol's main subject is SIP: Session Initiation Protocol — main subject (P921): Session Initiation Protocol[9].
  • RFC 2543: SIP: Session Initiation Protocol's work available at URL is recorded as https://tools.ietf.org/html/rfc2543[10].
  • RFC 2543: SIP: Session Initiation Protocol's work available at URL is recorded as https://tools.ietf.org/rfc/rfc2543.txt[11].
  • RFC 2543: SIP: Session Initiation Protocol's work available at URL is recorded as https://www.rfc-editor.org/rfc/rfc2543.txt[12].
  • RFC 2543: SIP: Session Initiation Protocol's work available at URL is recorded as https://www.rfc-editor.org/pdfrfc/rfc2543.txt.pdf[13].
  • RFC 2543: SIP: Session Initiation Protocol's number of pages is recorded as {'unit': '1', 'amount': '+151'}[14].
  • RFC 2543: SIP: Session Initiation Protocol's replaced by is recorded as SIP: Session Initiation Protocol — replaced by (P1366): RFC 3261: SIP: Session Initiation Protocol[15].
  • RFC 2543: SIP: Session Initiation Protocol's replaced by is recorded as SIP: Session Initiation Protocol — replaced by (P1366): RFC 3262: Reliability of Provisional Responses in Session Initiation Protocol (SIP)[16].
  • RFC 2543: SIP: Session Initiation Protocol's replaced by is recorded as SIP: Session Initiation Protocol — replaced by (P1366): RFC 3263: Session Initiation Protocol (SIP): Locating SIP Servers[17].
  • RFC 2543: SIP: Session Initiation Protocol's replaced by is recorded as SIP: Session Initiation Protocol — replaced by (P1366): RFC 3264: An Offer/Answer Model with Session Description Protocol (SDP)[18].
  • RFC 2543: SIP: Session Initiation Protocol's replaced by is recorded as SIP: Session Initiation Protocol — replaced by (P1366): RFC 3265: Session Initiation Protocol (SIP)-Specific Event Notification[19].
  • RFC 2543: SIP: Session Initiation Protocol's title is recorded as SIP: Session Initiation Protocol[20].
  • RFC 2543: SIP: Session Initiation Protocol's author name string is recorded as E. Schooler[21].

Body

Designation and Status

RFC 2543: SIP: Session Initiation Protocol's instance of is recorded as SIP: Session Initiation Protocol — instance of (P31): Request for Comments[5].

References

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

Direct Wikidata claims

  1. [5] ↑ . RFC Index. Retrieved . wikidata.org.
  2. [2] ↑ . RFC Index. Retrieved . wikidata.org.
  3. [3] ↑ . RFC Index. Retrieved . wikidata.org.
  4. [4] ↑ . RFC Index. Retrieved . wikidata.org.
  5. [6] ↑ . RFC Index. Retrieved . wikidata.org.
  6. [7] ↑ . RFC Index. Retrieved . wikidata.org.
  7. [8] ↑ . RFC Index. Retrieved . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . RFC Index. Retrieved . wikidata.org.
  10. [11] ↑ . RFC Index. Retrieved . wikidata.org.
  11. [12] ↑ . RFC Index. Retrieved . wikidata.org.
  12. [13] ↑ . RFC Index. Retrieved . wikidata.org.
  13. [14] ↑ . RFC Index. Retrieved . wikidata.org.
  14. [15] ↑ . RFC Index. Retrieved . wikidata.org.
  15. [16] ↑ . RFC Index. Retrieved . wikidata.org.
  16. [17] ↑ . RFC Index. Retrieved . wikidata.org.
  17. [18] ↑ . RFC Index. Retrieved . wikidata.org.
  18. [19] ↑ . RFC Index. Retrieved . wikidata.org.
  19. [20] ↑ . RFC Index. Retrieved . wikidata.org.
  20. [21] ↑ . RFC Index. Retrieved . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

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). RFC 2543: SIP: Session Initiation Protocol. Retrieved May 3, 2026, from https://4ort.xyz/entity/rfc-2543-sip-session-initiation-protocol
MLA “RFC 2543: SIP: Session Initiation Protocol.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rfc-2543-sip-session-initiation-protocol.
BibTeX @misc{4ortxyz_rfc-2543-sip-session-initiation-protocol_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{RFC 2543: SIP: Session Initiation Protocol}}, year = {2026}, url = {https://4ort.xyz/entity/rfc-2543-sip-session-initiation-protocol}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): RFC 2543: SIP: Session Initiation Protocol — https://4ort.xyz/entity/rfc-2543-sip-session-initiation-protocol (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/rfc-2543-sip-session-initiation-protocol · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 29d ago · HelloImSteven · 2026-06-27 view diff on Wikidata ↗
    Author → Henning Schulzrinne, Jonathan Rosenberg, Mark Handley
    Rfc id → 2543
    Dblp publication id → journals/rfc/rfc2543
    Work available at url → https://tools.ietf.org/html/rfc2543, https://tools.ietf.org/rfc/rfc2543.txt, https://www.rfc-editor.org/rfc/rfc2543.txt +1
    + 13 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:1||1 */ [[Property:P12946]]: RFC+2543, import FOLDOC ID ([[:toollabs:editgroups/b/wikibase-cli/ed002fb114c48/|details]])"
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