Hi, I compiled pjsua in vs 2012. Its working fine with asterisk server. When I add a buddy. buddy presence is automatically subscribed. So that buddy goes offline(from x-lite/another instance of pjsua), on_buddy_state callback is fired. But the problem is, on_buddy_state callback method is fired only one time. Later when the buddy comes online/goes offline again, callback method is not fired. I tried to dig-out but not getting any clue. Can anyone help me regarding this issue? Thank you. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140216/00752662/attachment-0001.html>