Hi! I see this in filename when i debug it. It likes this ptr=0x6177e31<bad ptr> and Expression can't be evaluated. what wrong? Does i gave it the incorrect path? I try like this "c:\\1.wav" or "c:/1.wav" with the correct format. Best, Raksa, -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100113/ee4f2c81/attachment.html>