Hello, I'm receiving console warnings that the switch is receiving unsupported RTCP packet version 3. However, a quick trace is showing that the packets are indeed in v2. Any ideas on why this is happening would be greatly appreciated. Below, also find console output and parts of the trace. Many thanks in advance. Cheers SP *FS Console:* 2018-01-19 10:42:12.220489 [INFO] switch_rtp.c:6737 Auto Changing audio RTCP port from A.B.C.D:29315 to 10.0.3.33:29897 2018-01-19 10:42:12.220489 [DEBUG] switch_rtp.c:2567 Setting RTCP remote addr to 10.0.3.33:29897 2 2018-01-19 10:42:12.220489 [WARNING] switch_rtp.c:6588 Received an unsupported RTCP packet version 3 *Wireshark:* 20895 49.775408 W.X.Y.Z 10.0.3.33 RTCP 154 Sender Report Source description Frame 20895: 154 bytes on wire (1232 bits), 154 bytes captured (1232 bits) Internet Protocol Version 4, Src: W.X.Y.Z, Dst: 10.0.3.33 User Datagram Protocol, Src Port: 29315, Dst Port: 29897 Real-time Transport Control Protocol (Sender Report) [Stream setup by SDP (frame 17312)] 10.. .... = Version: RFC 1889 Version (2) ..... Real-time Transport Control Protocol (Source description) [Stream setup by SDP (frame 17312)] ..... [RTCP frame length check: OK - 112 bytes]