{
  "draft": "draft-ietf-sip-replaces-05",
  "doc_id": "RFC3891",
  "title": "The Session Initiation Protocol (SIP) \"Replaces\" Header",
  "authors": [
    "R. Mahy",
    "B. Biggs",
    "R. Dean"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "16",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Session Initiation Protocol",
  "abstract": "This document defines a new header for use with Session Initiation Protocol (SIP) multi-party applications and call control.  The Replaces header is used to logically replace an existing SIP dialog with a new SIP dialog.  This primitive can be used to enable a variety of features, for example: \"Attended Transfer\" and \"Call Pickup\".  Note that the definition of these example features is non-normative. [STANDARDS-TRACK]",
  "pub_date": "September 2004",
  "keywords": [
    "SIP",
    "Session Initiation Protocol",
    "multi-party applications",
    "call control"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC3891",
  "errata_url": "https://www.rfc-editor.org/errata/rfc3891"
}