{
  "room": "tel-external",
  "title": "SIP, external voice, and what is not a trunk in the CUCM sense",
  "last_checked": "2026-10",
  "sources": [
    {
      "title": "Amazon Connect Customer Pricing Appendix - AWS",
      "url": "https://aws.amazon.com/products/connect/customer/pricing/appendix/",
      "kind": "aws",
      "last_checked": "2026-10",
      "status": "verified"
    },
    {
      "title": "RFC 3261: SIP: Session Initiation Protocol | RFC Editor",
      "url": "https://www.rfc-editor.org/info/rfc3261/",
      "kind": "rfc",
      "last_checked": "2026-10",
      "status": "verified",
      "opened": "https://www.rfc-editor.org/rfc/rfc3261"
    },
    {
      "title": "RFC 3550: RTP: A Transport Protocol for Real-Time Applications | RFC Editor",
      "url": "https://www.rfc-editor.org/info/rfc3550/",
      "kind": "rfc",
      "last_checked": "2026-10",
      "status": "verified",
      "opened": "https://www.rfc-editor.org/rfc/rfc3550"
    },
    {
      "title": "RFC 3711: The Secure Real-time Transport Protocol (SRTP) | RFC Editor",
      "url": "https://www.rfc-editor.org/info/rfc3711/",
      "kind": "rfc",
      "last_checked": "2026-10",
      "status": "verified",
      "opened": "https://www.rfc-editor.org/rfc/rfc3711"
    },
    {
      "title": "The voice channel in Connect Customer - Amazon Connect Customer",
      "url": "https://docs.aws.amazon.com/connect/latest/adminguide/concepts-telephony.html",
      "kind": "aws",
      "last_checked": "2026-10",
      "status": "verified"
    },
    {
      "title": "Session Initiation Protocol - Wikipedia",
      "url": "https://en.wikipedia.org/wiki/Session_Initiation_Protocol",
      "kind": "wikipedia",
      "last_checked": "2026-10",
      "status": "verified"
    },
    {
      "title": "Real-time Transport Protocol - Wikipedia",
      "url": "https://en.wikipedia.org/wiki/Real-time_Transport_Protocol",
      "kind": "wikipedia",
      "last_checked": "2026-10",
      "status": "verified"
    }
  ]
}