In an earlier blog post I wrote about publishing Lync services using TMG 2010. One of the Microsoft alternatives for reverse proxy is the Application Request Routing module or ARR, a module that’s running on top of Internet Information Server (IIS).
Lync Configuration
In my lab I have a Lync 2013 Enterprise Edition, in the perimeter network I have a Lync 2013 Edge Server, but instead of a TMG I now have an IIS/ARR server.
Jaap Wesselius 