http://blogs.technet.com/b/nexthop/archive/2013/02/28/the-latest-on-lync-skype-connectivity.aspxLync-Skype connectivity for presence, IM, and voice will be available to all Lync users by June 2013. The Lync Team Blog provides additional details. Author : Patrick Kelley, Senior Technical Writer Publication date : February 28,1013 Producten-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)