Nyquist C4000 Series System Software - Paging Zone License Expansion Pack.  Increases the current zone count of any Bundle-1, Bundle-2, or Bundle-3 system by 3-zones, allowing any of these systems to be grown/expanded in 3-zone increments (e.g., If a Bundle-2 system’s current zone count is 9, installing this upgrade will increase it by 3 to 12-zones).