Hi, during some recent tests I saw that pjsip does not fully implement RTCP according to RFC 3550, in particular set-up of RTCP compound packets, refer to chap 6.1. As noted in the subject these tests use the current pjsip 1.x (not 2.x) because 2.x is not yet "production-ready", isn't it? Maybe this is already addressed in 2.x? Using wireshark I see the following problems: - the very first RTCP compound packet contains a SDES only. No RR, not even an empty RR. - Pjsip sends SR without attaching an SDES packet - Pjsip sends a BYE packet without an RR and an SDES Usually this does not cause problems for RTCP implementations, however implementations that enforce the correct set-up of RTCP compound packets may discard RTCP compound packets and thus lose information. Best regards, Werner
