{
  "number": 6993,
  "title": "Instant Messaging and Presence Purpose for the Call-Info Header Field in the Session Initiation Protocol (SIP)",
  "authors": [
    "P. Saint-Andre"
  ],
  "published": "2013-07",
  "status": "Informational",
  "stream": "IETF",
  "pages": 5,
  "formats": [
    "TXT",
    "HTML"
  ],
  "abstract": "This document defines and registers a value of \"impp\" (\"instant messaging and presence protocol\") for the \"purpose\" header field parameter of the Call-Info header field in the Session Initiation Protocol (SIP).",
  "keywords": [
    "SIP",
    "Call-Info",
    "header field",
    "Instant Messaging",
    "Presence"
  ],
  "draft": "draft-saintandre-impp-call-info-04",
  "doi": "10.17487/RFC6993",
  "urls": {
    "html": "https://rfc.dk/rfc6993/",
    "text": "https://rfc.dk/rfc6993.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc6993",
    "datatracker": "https://datatracker.ietf.org/doc/rfc6993/"
  },
  "text_modified": "2013-07-29T17:00:01Z"
}