Lync Server 2010
This is where we will begin to document the firewall port settings necessary for a Lync Server 2010 deployment.
The Microsoft Lync Server 2010 Protocol Workloads Poster has been posted:
http://blogs.technet.com/b/drrez/archive/2010/11/17/microsoft-lync-server-2010-protocol-workloads-poster.aspx
Download link: