For a couple of week one of my customer was complaining about little hickups in their Lync 2013 environment. It was working, but every now and then they had these strange little issues. When I moved my own accounts to Lync Online I was not able to federate with this customer anymore so it was time to start investigating.
In my previous blog post I explained how to install the first Front-End server in a Front-End pool. To extend the functionality we are now going to install a Lync 2013 Edge server. Using the Edge server users can logon to the Lync environment externally, and you can setup a federation with other companies to communicate with users in these companies as well.