{
  "opened": "2026-10",
  "sources": [
    {
      "kind": "Wikipedia",
      "title": "Asterisk (software)",
      "url": "https://en.wikipedia.org/wiki/Asterisk_(PBX)"
    },
    {
      "kind": "Asterisk",
      "title": "Asterisk dialplan",
      "url": "https://docs.asterisk.org/Configuration/Dialplan/"
    },
    {
      "kind": "Asterisk",
      "title": "Asterisk documentation overview",
      "url": "https://docs.asterisk.org/About-the-Project/"
    },
    {
      "kind": "Wikipedia",
      "title": "Direct inward dial",
      "url": "https://en.wikipedia.org/wiki/Direct_inward_dial"
    },
    {
      "kind": "Wikipedia",
      "title": "SIP trunking",
      "url": "https://en.wikipedia.org/wiki/SIP_trunking"
    },
    {
      "kind": "Twilio",
      "title": "Emergency Calling for SIP Trunking",
      "url": "https://www.twilio.com/docs/sip-trunking/emergency-calling"
    },
    {
      "kind": "Bandwidth",
      "title": "Bandwidth Emergency Services",
      "url": "https://dev.bandwidth.com/docs/emergency/"
    },
    {
      "kind": "Confirm",
      "title": "CUCM and UCCE menus. confirm. Those Cisco pages were not opened.",
      "url": null
    },
    {
      "kind": "Confirm",
      "title": "A dual-run duration. confirm.",
      "url": null
    }
  ]
}