hi all , i had compleated the registration and call part under Windows-Xp and , i am using ming32 build for my project .it is working pretty good in Xp, but it was not working in vista if any one know how to use pjsip under vista,please give me a suggestion. Thanks, gokul. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090518/1c45aa08/attachment.html>