RFC 1889 RTP January 1996 6.one RTCP Packet Structure This specification defines several RTCP packet types to hold several different Management info: SR: Sender report, for transmission and reception studies from participants which are Lively senders RR: Receiver report, for reception stats from participants that are not Lively senders SDES: https://tinav863scj1.wizzardsblog.com/profile