Hello. We Build 4.3 masterbranch (latest branch) . We install it today and not changed config from old build (4.3 masterbranch) that builded december 26. IT means - keys of rtpengine module the same for all configs. Last changes of rtpengine was nowember 28. This mean rtpengine is the same with to builds. With new branch we have an error with rtpengine module. Jan 14 05:09:58 Kamailio rtpengine[482]: [7dd25def58ced3786f99894d1c34e18a@10.0.1.17:50600 port 30080] Error parsing RTP header: invalid header version Jan 14 05:09:58 Kamailio rtpengine[482]: [7dd25def58ced3786f99894d1c34e18a@10.0.1.17:50600 port 30081] Error parsing RTCP header: invalid header version --- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/32