MiVoice Office Application Suite - Technical Manual
Site License
Licensing is controlled via a software based Activation key. The server that performs the licensing role requires it own license key that is tied to a MAC address on the server and the site is assigned a unique "Site ID". The license key needs to be activated via the licensing portal before it can be used (online and offline activation is supported).
The architecture of the Communication Service software supports scaling by introducing the concept of Roles for servers. It is theoretically possible therefore that multiple physical (or virtual) servers could combine to form the "Site" e.g. One server could be used as a dedicated Web server whilst a separate server could perform the remainder of the roles such as Database and Application Server.
Critically, one of the roles is licensing. Since it's possible that in a multi-server configuration only one server can perform the licensing role, the license configuration is visible both in Site Settings -> Site License and in Servers Settings -> License sections for the server performing that role. In the vast majority of cases one server will perform ALL roles.
This section displays the site wide licenses that are activated on the system.
Each licensed feature will either have a green tick to indicate that this is enabled or a red cross if it is disabled. Whilst navigating the user interface, any features that are not licensed have a locked 
icon next to their configuration section. The unlicensed feature can still be configured but it will not be able to be used until a license has been obtained.
This view of the license will report which server is running the license, the site ID, which features are licensed and for any licenses that are user based, both the licensed limit and the quantity of users consuming that license class.
Activating, De-Activating and updating (upgrading) licensed features are performed in the Servers Settings -> License section.