{
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  "docId": "RFC3351",
  "document": {
    "abstract": "This document aims to present a set of SIP user requirements that support communications for deaf, hard of hearing and speech-impaired individuals. These user requirements address the current difficulties of deaf, hard of hearing and speech-impaired individuals in using communications facilities, while acknowledging the multi-functional potential of SIP-based communications. A number of issues related to these user requirements are further raised in this document. Also included are some real world scenarios and some technical requirements to show the robustness of these requirements on a concept-level.",
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      "confidence": "high",
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    },
    "authors": [
      {
        "name": "Nathan Charlton"
      },
      {
        "name": "Mick Gasson"
      },
      {
        "name": "Guido Gybels"
      },
      {
        "name": "Mike Spanner"
      },
      {
        "name": "Arnoud Van Wijk"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docId": "RFC3351",
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      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.783Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docLabel": "IETF RFC 3351",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.783Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docNumber": "3351",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.783Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docTitle": "User Requirements for the Session Initiation Protocol (SIP) in Support of Deaf, Hard of Hearing and Speech-impaired Individuals",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.783Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "doi": "10.17487/RFC3351",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "href": "https://doi.org/10.17487/RFC3351",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "keywords": [
      "Relay Service",
      "Transcoding Service"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Relay Service",
        "Transcoding Service",
        "Textphone"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:57:26.483Z",
      "version": "extractDocs.js@commit:8ad844f404e0"
    },
    "pages": "17",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publicationDate": "2002-08-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "references": {
      "normative": [
        "RFC2119",
        "RFC3261"
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      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
        "updated": "2026-10-13T18:20:13.784Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc3351/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
      "updated": "2026-10-13T18:20:13.784Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
        "updated": "2026-10-13T18:20:13.784Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataExist": false,
      "errataExist$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/rfc3351/",
        "updated": "2026-10-13T18:20:13.784Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
        "updated": "2026-10-13T18:20:13.784Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
        "updated": "2026-10-13T18:20:13.784Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3351/",
        "updated": "2026-10-13T18:20:13.784Z",
        "version": "extractDocs.js@commit:6d30695438dd"
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}