{
  "draft": "draft-ietf-simple-winfo-package-05",
  "doc_id": "RFC3857",
  "title": "A Watcher Information Event Template-Package for the Session Initiation Protocol (SIP)",
  "authors": [
    "J. Rosenberg"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "20",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "SIP for Instant Messaging and Presence Leveraging Extensions",
  "abstract": "This document defines the watcher information template-package for the Session Initiation Protocol (SIP) event framework.  Watcher information refers to the set of users subscribed to a particular resource within a particular event package.  Watcher information changes dynamically as users subscribe, unsubscribe, are approved, or are rejected.  A user can subscribe to this information, and therefore learn about changes to it.  This event package is a template-package because it can be applied to any event package, including itself. [STANDARDS-TRACK]",
  "pub_date": "August 2004",
  "keywords": [],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC3857",
  "errata_url": null
}