{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-13T16:42:56.499Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC3427",
  "document": {
    "abstract": "This memo documents a process intended to apply architectural discipline to the future development of the Session Initiation Protocol (SIP). There have been concerns with regards to new SIP proposals. Specifically, that the addition of new SIP features can be damaging towards security and/or greatly increase the complexity of the protocol. The Transport Area directors, along with the SIP and Session Initiation Proposal Investigation (SIPPING) working group chairs, have provided suggestions for SIP modifications and extensions. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "authors": [
      {
        "name": "Allison J. Mankin"
      },
      {
        "name": "Scott O. Bradner"
      },
      {
        "name": "Rohan Mahy"
      },
      {
        "name": "Dean Willis"
      },
      {
        "name": "Joerg Ott"
      },
      {
        "name": "Brian Rosen"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "docId": "RFC3427",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "docLabel": "IETF RFC 3427",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "docNumber": "3427",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "docTitle": "Change Process for the Session Initiation Protocol (SIP)",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "docType": "Best Practice",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "doi": "10.17487/RFC3427",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "href": "https://doi.org/10.17487/RFC3427",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "keywords": [
      "SIPPING"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Sipping"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-13T16:42:56.499Z",
      "version": "extractDocs.js@commit:90e14d7cf535"
    },
    "pages": "12",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "publicationDate": "2002-12-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "references": {
      "normative": [
        "RFC2119",
        "RFC2026",
        "RFC3261",
        "RFC3265"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc3427/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
      "updated": "2026-10-12T21:13:27.189Z",
      "version": "extractDocs.js@commit:291bb05ea30a"
    },
    "status": {
      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      },
      "amendedBy": [
        "RFC3968",
        "RFC3969"
      ],
      "amendedBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      },
      "latestVersion": false,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      },
      "statusNote": "Best Current Practice",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      },
      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      },
      "supersededBy": [
        "RFC5727"
      ],
      "supersededBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3427/",
        "updated": "2026-10-12T21:13:27.189Z",
        "version": "extractDocs.js@commit:291bb05ea30a"
      }
    }
  }
}