{
  "room": "start",
  "checked": "2026-10",
  "sources": [
    {
      "kind": "rfc",
      "title": "RFC 3261, SIP",
      "url": "https://www.rfc-editor.org/rfc/rfc3261",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "rfc",
      "title": "RFC 3264, offer/answer",
      "url": "https://www.rfc-editor.org/rfc/rfc3264",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "rfc",
      "title": "RFC 3550, RTP",
      "url": "https://www.rfc-editor.org/rfc/rfc3550",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "rfc",
      "title": "RFC 4566, SDP",
      "url": "https://www.rfc-editor.org/rfc/rfc4566",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "rfc",
      "title": "RFC 3262, reliable provisional responses (PRACK)",
      "url": "https://www.rfc-editor.org/rfc/rfc3262",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "cisco",
      "title": "Cisco Unified Communications Manager product support",
      "url": "https://www.cisco.com/c/en/us/support/unified-communications/unified-communications-manager-callmanager/series.html",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "wikipedia",
      "title": "Session Initiation Protocol (Wikipedia)",
      "url": "https://en.wikipedia.org/wiki/Session_Initiation_Protocol",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    }
  ]
}