Hi All I am usiing pjsip-1.0.2 along with QT.. When i am clicking the login button it goes to sip registration . Some times i am getting the Run time C++ error. or Visual studio Just in time Debugger Error. I ma very clear in QT side there is no issue.. Because once i click the login button,it comes to initialize pjsip function.. Please help how do sort out this issue Thanks Yuvaraj R