https://app.knowbase.one/vault/rfc/docid/1090
RFC3267: Real-Time Transport Protocol (RTP) Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs
Network Working Group J. Sjoberg Request for Comments: 3267 M. Westerlund Category: Standards Track Ericsson A. Lakaniemi ...
https://app.knowbase.one/vault/rfc/docid/5313
RFC4867: RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs
Network Working Group J. Sjoberg Request for Comments: 4867 M. Westerlund Obsoletes: 3267 Ericsson Category: Standards Track A. Lakaniemi ...