hi,all, I packet pjsip with a dll, callback this dll file in my program, and work good. but i find a question: when i continue click my program let the progrem windows max and min, the reomte user heard his recieved sound with clitter. ? i have set the ___________________________________________________________ ????????????????? http://card.mail.cn.yahoo.com/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090106/7a768371/attachment.html>