Microsoft Lync Server 2013 Requirements
The Microsoft infrastructure (AD, DNS, CA, etc) needs to be in place, including all licenses required.
This guide does not cover the Lync Server 2013 installation. Our recommendation is that the Microsoft infrastructure shall be installed by a trained Microsoft engineer.
Before to start Microsoft Lync Server 2013 for RCC setup, read the following document:
Microsoft Lync Server 2013, Deploying Remote Call Control
http://technet.microsoft.com/en-us/library/gg558664.aspx
MX-ONE was validated with Microsoft Lync 2013 Remote Call Control with only one Lync Front End server.
Microsoft Lync 2013 requires load balancer when more than one Front End is used. Please note that this setup was not validated with MX-ONE.
http://support.microsoft.com/kb/2880474