Does it also crash with unmodified pjsua? If no, that means the bug is in your app, so find it by comparing it with the samples etc. And please do not harass the members to help you. Everybody here is only donating their time to try to help others. So try to appreciate that. It's also *impossible* to try to offer some help if you don't provide us with complete info about the problem. Start with explaining what the problem is. State which pjsip version do you use. If you have a custom app, show what your modifications are, without showing the full thousand lines source codes as that would take ages to read. And explain the steps to reproduce the problem. All of these would help making this list more efficient, thus saving everyone's time. Last but not least, be patient. PJSIP is a complex piece of software, and you've only been learning for less than a week it seems, though in that period you managed to send more than a dozen emails to the list. IMHO you should try a little harder to try to solve the problems yourself. Best regards, ?Benny On Sat, Aug 7, 2010 at 2:07 AM, Shamun toha md <shamun.toha at gmail.com> wrote: > No idea? Why i follow all the steps from mail-list + docs. I have Segmentation > fault (core dumped). > > [root at example deploy]# uname -a > Linux example 2.6.32.12-114.fc12.i686 #1 SMP Tue Apr 27 21:29:58 UTC 2010 i686 > i686 i386 GNU/Linux > [root at example deploy]# >