Hello nanag, would you pls inform, -whether the RTP also gets send/receive via the "pj_sock_sendto" and "pj_sock_recvfrom" functions in "sock_bsd.c" file? -How is the character encoding of RTP and RTCP.. do they just "char" type of C? I have tried to find out from the articles for the character encoding of RTP/RTCP, but haven't got a clear one.. If i want to work with the RTP/RTCP packets in C# .NET sent from pjsip, will i have to cast them with ... Byte[] bMsg = Encoding.Unicode.GetBytes(sMsg) or Byte[] bMsg = Encoding.ASCII.GetBytes(sMsg) ?? Best Regards, Riad. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100610/68ff3476/attachment.html>