Thanks, but in RX, you say thay 62.5 kbps is average received bit rate. So what is 78.1 ? - I don't remember correctly why are they give us 2 number for bit rate. Get dump couple times: pjsua_call_dump(call_id, PJ_TRUE, some_buf, sizeof(some_buf), " "); CString cs = some_buf; and the value which will be more stable - is you average bit rate. 337 packet is the number of packet we received each time ? - 337 is a number of packets(audio packets), received from begin of the call. Sorry for asking many questions, but I have looked at the code and cannot figure out it - it's ok. ask. and then I have more time - I'll answer. after half of the year with PJSIP and integrate it to my product I increased my experience with PJSIP. :) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130123/b34633ae/attachment-0001.html>