{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC6337",
  "document": {
    "abstract": "The Session Initiation Protocol (SIP) utilizes the offer/answer model to establish and update multimedia sessions using the Session Description Protocol (SDP). The description of the offer/answer model in SIP is dispersed across multiple RFCs. This document summarizes all the current usages of the offer/answer model in SIP communication. This document is not an Internet Standards Track specification; it is published for informational purposes.",
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      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "authors": [
      {
        "name": "Shinji OKUMURA"
      },
      {
        "name": "Takuya Sawada"
      },
      {
        "name": "Paul Kyzivat"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docId": "RFC6337",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docLabel": "IETF RFC 6337",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docNumber": "6337",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docTitle": "Session Initiation Protocol (SIP) Usage of the Offer/Answer Model",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "doi": "10.17487/RFC6337",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "href": "https://doi.org/10.17487/RFC6337",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "keywords": [
      "Offer/Answer",
      "SDP",
      "SIP"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "pages": "33",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publicationDate": "2011-08-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "references": {
      "bibliographic": [
        "RFC3725",
        "RFC3959",
        "RFC4474",
        "RFC6080"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=14 proseBlocks=15 skippedAnchorBlocks=13",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "normative": [
        "RFC2119",
        "RFC3261",
        "RFC3262",
        "RFC3264",
        "RFC3311",
        "RFC3312",
        "RFC4566",
        "RFC6141"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc6337/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
      "updated": "2026-10-20T17:29:42.890Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc6337",
        "https://www.rfc-editor.org/errata_search.php?rfc=6337"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6337/",
        "updated": "2026-10-20T17:29:42.890Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    }
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}