{
  "draft": "draft-ietf-mmusic-sdp4nat-05",
  "doc_id": "RFC3605",
  "title": "Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP)",
  "authors": [
    "C. Huitema"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "8",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Multiparty Multimedia Session Control",
  "abstract": "The Session Description Protocol (SDP) is used to describe the parameters of media streams used in multimedia sessions.  When a session requires multiple ports, SDP assumes that these ports have consecutive numbers.  However, when the session crosses a network address translation device that also uses port mapping, the ordering of ports can be destroyed by the translation.  To handle this, we propose an extension attribute to SDP.",
  "pub_date": "October 2003",
  "keywords": [
    "RTCP",
    "Real Time Control Protocol",
    "SDP",
    "Session Description Protocol",
    "nat",
    "network access translation",
    "port mapping"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC3605",
  "errata_url": "https://www.rfc-editor.org/errata/rfc3605"
}