I have looked through the posts and Googled this topic and still confused. We have CM 6.0.2 and Session Mngr 6.2...we use Lync for IM'ng but would like to use it for making calls and showing presence - to do this, what do we need? I have been seeing AES, Microsoft Lync Integration Server, etc. but I also found this document that seems TOO easy... shows something as simple as downloading a Lync Integration bar.