Hi all, I've already ask this in a compound question. It seems that it contains many questions that its hard to answer. In pjmedia/rtcp.c, in function pjmedia_rtcp_init2() /* Set clock rate */ sess->clock_rate = settings->clock_rate; sess->pkt_size = settings->samples_per_frame; This only works right where 1 packet contains 1 frame Why should not it be like this sess->pkt_size = settings->samples_per_frame * si->param->setting.frm_per_pkt (with si is pjmedia_stream_info) ? -- Khoa Pham HCMC University of Science Faculty of Information Technology -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130202/760738b6/attachment-0001.html>