Hi, Why does pjmedia_rtp_encode_rtp() update the RTP header timestamp with ts_len inline? Shouldn't the RTP timestamp be of the start of the frame? RFC 3550 says: The timestamp reflects the sampling instant of the first octet in the RTP data packet. So don't you want to update the RTP session timestamp with ts_len only after the packet is sent? Is there something I'm missing here? Kal _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org