Cisco UC500 series Configuration Manual page 31

4.3.21 Click on the "Voice System Features" tab to continue. This is where you configure
the system wide features (if required) such as Paging, Intercom etc. It is strongly
recommended that the default extensions provided for each feature are NOT changed, to
avoid conflicts with other extensions, and more importantly with dial plan elements that
are "built in" and not visible through CCA.
In this example - Paging, Group Pickup, Caller ID Block Code, Intercom and Hunt Group
features are enabled.
Figure 4.3.21 Voice System Features tab
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