https://app.knowbase.one/vault/rfc/docid/2267
RFC2032: RTP Payload Format for H.261 Video Streams
Network Working Group T. Turletti Request for Comments: 2032 MIT Category: Standards Track C. Huitema Bellcore ...
https://app.knowbase.one/vault/rfc/docid/5006
RFC4587: RTP Payload Format for H.261 Video Streams
Network Working Group R. Even Request for Comments: 4587 Polycom Obsoletes: 2032 August 2006 Category: Standards Track RTP Payload Format for H.261 Vid...