HI: Thanks Benny for your comments, I understand know that is not as easy to just place macros to mark by DSCP the streams, due to the portability, I think it can work for linux and windows doing setsockopt thing, but doing for Windows Mobile and Symbian could be not directly. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080423/c0ab8b3f/attachment.html