Lync Server Site Settings Expander
To edit the properties of an existing site, do the following:
In site properties, you can change or modify the site Name (required), Description (optional), City (optional), State/Province (optional), and the Country/Region Code (optional).
For details about site properties, see Add Branch Sites to Your Topology.
Federation Route properties
To set a site federation route assignment, you must first have federation enabled on an Edge Server or an Edge Server pool. If federation is not enabled on an Edge Server or pool, the federation route assignment settings for the site will not be available for modification.
If the federation setting at the Edge Server or pool has been configured, select Enable at the site level. Then select an Edge or a Director from the drop-down list to set as the federation route.
This setting will affect all sites. Be sure that the setting that you are configuring at this site is appropriate for all sites.
For details, see Topologies for External User Access.