Android Application is based on the library here https://github.com/VoiSmart/pjsip-android. This Native PJSIP library for Android is compiled using PJSIP Android Builder

You can visit and download the Application from this Link: https://github.com/lahirutm/PjsipGo

Original Source was Here: https://github.com/fengfeilong0529/PjsipGo