Hopefully, someone can clarify it or fix it. ? I think I found a problem in ICE, ICE should put default destination IP, (in this test, 213.192.59.91) in the ice candidate, else the other side will generate ice-mismatch error. screenshot is attached. ? I tested 1.0 rc2 on windows. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081013/fab32fd5/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: ice.JPG Type: image/pjpeg Size: 274764 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081013/fab32fd5/attachment-0001.JPG>