{
  "room": "one-change",
  "checked": "2026-10",
  "sources": [
    {
      "kind": "cisco",
      "title": "System Configuration Guide for CUCM, Release 15",
      "url": "https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/15/systemConfig/cucm_b_system-configuration-guide-15.html",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "rfc",
      "title": "RFC 3261, SIP",
      "url": "https://www.rfc-editor.org/rfc/rfc3261",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    },
    {
      "kind": "community",
      "title": "Cisco Community, Collaboration knowledge base",
      "url": "https://community.cisco.com/t5/collaboration-knowledge-base/tkb-p/4691-docs-collaboration-voice-video",
      "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": ""
    },
    {
      "kind": "ports",
      "title": "CUCM 15 TCP and UDP port usage",
      "url": "https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/15/systemConfig/cucm_b_system-configuration-guide-15/cucm_m_tcp-and-udp-port-usage-12-0.html",
      "status": "verified",
      "last_checked": "2026-10",
      "note": ""
    }
  ]
}