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RFC 3261: SIP: Session Initiation Protocol

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RFC 3261: SIP: Session Initiation Protocol

Summary

RFC 3261: SIP: Session Initiation Protocol is a Request for Comments[1].

Key Facts

  • RFC 3261: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Henning Schulzrinne[2].
  • RFC 3261: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Jonathan Rosenberg[3].
  • RFC 3261: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Mark Handley[4].
  • RFC 3261: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Gonzalo Camarillo[5].
  • RFC 3261: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Jon Peterson[6].
  • RFC 3261: SIP: Session Initiation Protocol authored SIP: Session Initiation Protocol — author (P50): Robert J. Sparks[7].
  • RFC 3261: SIP: Session Initiation Protocol's instance of is recorded as SIP: Session Initiation Protocol — instance of (P31): Request for Comments[8].
  • RFC 3261: SIP: Session Initiation Protocol's publisher is recorded as SIP: Session Initiation Protocol — publisher (P123): Internet Engineering Task Force[9].
  • RFC 3261: SIP: Session Initiation Protocol's DOI is recorded as 10.17487/RFC3261[10].
  • RFC 3261: SIP: Session Initiation Protocol's language of work or name is recorded as SIP: Session Initiation Protocol — language of work or name (P407): English[11].
  • RFC 3261: SIP: Session Initiation Protocol's publication date is recorded as +2002-06-01T00:00:00Z[12].
  • RFC 3261: SIP: Session Initiation Protocol's RfC ID is recorded as 3261[13].
  • RFC 3261: SIP: Session Initiation Protocol's main subject is recorded as SIP: Session Initiation Protocol — main subject (P921): Session Initiation Protocol[14].
  • RFC 3261: SIP: Session Initiation Protocol's work available at URL is recorded as https://tools.ietf.org/html/rfc3261[15].
  • RFC 3261: SIP: Session Initiation Protocol's work available at URL is recorded as https://tools.ietf.org/rfc/rfc3261.txt[16].
  • RFC 3261: SIP: Session Initiation Protocol's work available at URL is recorded as https://www.rfc-editor.org/rfc/rfc3261.txt[17].
  • RFC 3261: SIP: Session Initiation Protocol's work available at URL is recorded as https://www.rfc-editor.org/pdfrfc/rfc3261.txt.pdf[18].
  • RFC 3261: SIP: Session Initiation Protocol's number of pages is recorded as {'unit': '1', 'amount': '+269'}[19].
  • RFC 3261: SIP: Session Initiation Protocol's replaces is recorded as SIP: Session Initiation Protocol — replaces (P1365): RFC 2543: SIP: Session Initiation Protocol[20].
  • RFC 3261: SIP: Session Initiation Protocol's title is recorded as SIP: Session Initiation Protocol[21].
  • RFC 3261: SIP: Session Initiation Protocol's author name string is recorded as A. Johnston[22].
  • RFC 3261: SIP: Session Initiation Protocol's author name string is recorded as E. Schooler[23].
  • RFC 3261: SIP: Session Initiation Protocol's amended by is recorded as SIP: Session Initiation Protocol — amended by (P2567): RFC 3265: Session Initiation Protocol (SIP)-Specific Event Notification[24].
  • RFC 3261: SIP: Session Initiation Protocol's amended by is recorded as SIP: Session Initiation Protocol — amended by (P2567): RFC 3853: S/MIME Advanced Encryption Standard (AES) Requirement for the Session Initiation Protocol (SIP)[25].
  • RFC 3261: SIP: Session Initiation Protocol's amended by is recorded as SIP: Session Initiation Protocol — amended by (P2567): RFC 4320: Actions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE Transaction[26].

Body

Designation and Status

RFC 3261: SIP: Session Initiation Protocol's instance of is recorded as SIP: Session Initiation Protocol — instance of (P31): Request for Comments[8].

References

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

Direct Wikidata claims

  1. [8] ↑ . 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. [5] ↑ . RFC Index. Retrieved . wikidata.org.
  6. [6] ↑ . RFC Index. Retrieved . wikidata.org.
  7. [7] ↑ . RFC Index. Retrieved . wikidata.org.
  8. [9] ↑ . RFC Index. Retrieved . 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] ↑ . 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.
  21. [22] ↑ . RFC Index. Retrieved . wikidata.org.
  22. [23] ↑ . RFC Index. Retrieved . wikidata.org.
  23. [24] ↑ . RFC Index. Retrieved . wikidata.org.
  24. [25] ↑ . RFC Index. Retrieved . wikidata.org.
  25. [26] ↑ . 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 3261: SIP: Session Initiation Protocol. Retrieved May 3, 2026, from https://4ort.xyz/entity/rfc-3261-sip-session-initiation-protocol
MLA “RFC 3261: SIP: Session Initiation Protocol.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rfc-3261-sip-session-initiation-protocol.
BibTeX @misc{4ortxyz_rfc-3261-sip-session-initiation-protocol_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{RFC 3261: SIP: Session Initiation Protocol}}, year = {2026}, url = {https://4ort.xyz/entity/rfc-3261-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 3261: SIP: Session Initiation Protocol — https://4ort.xyz/entity/rfc-3261-sip-session-initiation-protocol (retrieved 2026-05-03)

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