Hi Benny, There is one minor issue in the pjsip release 2.1 when we are using the function "pjmedia_session_get_info" in the pjusa application then error is coming "error LNK2019: unresolved external symbol _pjmedia_session_get_info referenced in function" I have found the reason and the reason is that in the project pjmedia when building on windows using the VS 2008 the source file session.c is not coming in the pjmedia project source files the declaration of the function pjmedia_session_get_info is in the session.h so the project pjmedia is building and the pjmedia lib file is producing but it missing the definition of the session.c function definition pjmedia_session_get_info. So please add it in the next release. Well by adding it manually also it is working so i mark it minor issue. Regards Varun -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20131128/3724c4c6/attachment-0001.html>