NBX Licensing 61How the SystemLimits InteractAs you add devices to an NBX system, you must keep in mind all of theselimitations:■ Total device limit for the system■ Individual device limit for certain device types■ License limit for certain device types■ System memoryExample: Your V3001 Analog system has the optional memory upgradeinstalled. It is licensed for 1500 total devices and you want to configure450 telephones:■ You configure 6 NBX Analog Line Cards, and 12 NBX Analog TerminalCards (for analog telephones and FAX machines).The total device count is now (6 x 4) + (12 x 4) = 72.■ You then configure 450 3Com Telephones.The total device count is now 522. You can configure 978 additionaldevices (1500–522).■ You want to configure 200 Attendant Consoles, but, because theindividual device limit for Attendant Consoles is 100, you canconfigure only 100 Attendant Consoles.The total device count is now 622. You can configure 878 additionaldevices (1500–622).■ You want to add Virtual Tie Lines (VTLs), but you can add only 48because that is the maximum license level available for VTLs.VTLs do not count toward the device limit, so the total device countremains at 622. So, after you add 48 VTLs, you can still configure upto 878 additional devices.Maximum DeviceCounts and MemoryRequirementsThis section lists each NBX device and application with information onwhether it counts toward the total device count and the maximumnumber allowed per NBX system and shows which devices and featuresrequire the optional memory upgrade on V3001 systems. The maximumnumber for each device and application assumes that there are no othertypes of devices connected to the system — the total device limit alwaystakes precedence.For information about feature interactions and performance issues, see“Features and System Performance” on page 59.
