{
  "draft": "draft-ietf-simple-msrp-relays-10",
  "doc_id": "RFC4976",
  "title": "Relay Extensions for the Message Sessions Relay Protocol (MSRP)",
  "authors": [
    "C. Jennings",
    "R. Mahy",
    "A. B. Roach"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "36",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "SIP for Instant Messaging and Presence Leveraging Extensions",
  "abstract": "Two separate models for conveying instant messages have been defined.  Page-mode messages stand alone and are not part of a Session Initiation Protocol (SIP) session, whereas session-mode messages are set up as part of a session using SIP.  The Message Session Relay Protocol (MSRP) is a protocol for near real-time, peer-to-peer exchanges of binary content without intermediaries, which is designed to be signaled using a separate rendezvous protocol such as SIP.  This document introduces the notion of message relay intermediaries to MSRP and describes the extensions necessary to use them. [STANDARDS-TRACK]",
  "pub_date": "September 2007",
  "keywords": [
    "instante message",
    "page-mode",
    "session-mode",
    "relay intermediary"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [
    "RFC7977",
    "RFC8553",
    "RFC8996"
  ],
  "see_also": [],
  "doi": "10.17487/RFC4976",
  "errata_url": "https://www.rfc-editor.org/errata/rfc4976"
}