{
  "draft": "draft-ietf-sip-refer-with-norefersub-04",
  "doc_id": "RFC4488",
  "title": "Suppression of Session Initiation Protocol (SIP) REFER Method Implicit Subscription",
  "authors": [
    "O. Levin"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "8",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Session Initiation Protocol",
  "abstract": "The Session Initiation Protocol (SIP) REFER extension as defined in RFC 3515 automatically establishes a typically short-lived event subscription used to notify the party sending a REFER request about the receiver's status in executing the transaction requested by the REFER.  These notifications are not needed in all cases.  This specification provides a way to prevent the automatic establishment of an event subscription and subsequent notifications using a new SIP extension header field that may be included in a REFER request. [STANDARDS-TRACK]",
  "pub_date": "May 2006",
  "keywords": [],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC4488",
  "errata_url": null
}