hello everybody, i want to develop my own simple sip client, it contain call hold, call forward, etc.. anyway. i want to learn how could it works then i have download http://www.pjsip.org/pjsip/docs/html/page_pjsip_sample_simple_ua_c.htm i don't know where i have to start, i read instructions of instillation documents PJSIP i followed there steps ; 1) http://www.pjsip.org/release/1.0.3/pjproject-1.0.3.zip 2) unzip to folder 3) create a empty file on pjlib/include/pj/config_site.h 4) install Platform SDK 5) install DirectX SDK 6) install VS 2005 7) restart 8) open pjproject-vs8.sln with vs 2005 9) build project i don't understand what i am doing ... i make a file and learn very very very simple sip client. please help me -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100309/17033e4d/attachment.html>