20-Lync Server 2010 & 2013 Workshop (Install Lync 2013 over win 2012 Preperation TB) By Eng-Hany Abd El-Wahab | Arabic https://www.facebook.com/free4arab http://www.free4arab.com https://twitter.com/free4arab1 https://plus.google.com/113503705132872627915 نور الهدى لتكنولوجيا المعلومات