https://app.knowbase.one/vault/rfc/docid/6814
RFC6262: RTP Payload Format for IP-MR Speech Codec
Internet Engineering Task Force (IETF) S. Ikonin Request for Comments: 6262 SPIRIT DSP Category: Standards Track August 2011 ISSN: 2070-1721 RTP Payload Format for IP-MR Speech Codec ...