{
  "draft": "draft-ietf-avt-compact-bundled-evrc-11",
  "doc_id": "RFC4788",
  "title": "Enhancements to RTP Payload Formats for EVRC Family Codecs",
  "authors": [
    "Q. Xie",
    "R. Kapoor"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "22",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Audio/Video Transport",
  "abstract": "This document updates the Enhanced Variable Rate Codec (EVRC) RTP payload formats defined in RFC 3558 with several enhancements and extensions.  In particular, it defines support for the header-free and interleaved/bundled packet formats for the EVRC-B codec, a new compact bundled format for the EVRC and EVRC-B codecs, as well as discontinuous transmission (DTX) support for EVRC and EVRC-B-encoded speech transported via RTP.  Voice over IP (VoIP) applications operating over low bandwidth dial-up and wireless networks require such enhancements for efficient use of the bandwidth. [STANDARDS-TRACK]",
  "pub_date": "January 2007",
  "keywords": [
    "enhanced variable rate codec",
    "real time transmission protocol",
    "evrc-b",
    "dtx",
    "discontinuous transmission"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [
    "RFC3558"
  ],
  "updated_by": [
    "RFC5188"
  ],
  "see_also": [],
  "doi": "10.17487/RFC4788",
  "errata_url": null
}