The Microsoft Lync Server 2010 communications software protocol workloads poster shows the protocols that are used by each workload in Lync Server 2010, describing relationships, dependencies, the servers that initiate connections, and certificate requirements. This poster provides a snapshot of the network connections between server roles. You can download this poster from here. Author: Rui Maximo: Product Version: Microsoft Lync Server 2010 communications software, Microsoft Office Communications Server 2007 R2. The latest version is 5.12.