https://app.knowbase.one/vault/rfc/docid/3760
RFC3625: The QCP File Format and Media Types for Speech Data
Network Working Group R. Gellens Request for Comments: 3625 H. Garudadri Updates: 3555 Qualcomm Category: Informational September 2003 ...
https://app.knowbase.one/vault/rfc/docid/3926
RFC3558: RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV)
Network Working Group A. Li Request for Comments: 3558 UCLA Category: Standards Track July 2003 RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) ...