NBX Licensing 57Individual DeviceLimitsCertain individual device types are limited to a maximum per systembecause of internal product rules. For example, the NBX Analog Line Cardhas 4 ports. Although each of these ports counts as a device, the NBXsystem architecture limits the system to 180 Analog Line Cards (4 x 180),and thus the system can support a maximum of 720 not 1500 analog lineports.Features and SystemPerformanceSome combinations of features on NBX 100 systems and V3000 systemsthat do not have the optional memory upgrade installed can createsystem performance issues. These notes describe system configurationissues that affect performance. Performance on V3001R, V5000, andV3000 systems that have the optional memory upgrade installed are notaffected by these features performance limits.■ A V3000 without the optional memory upgrade can provideacceptable performance for the maximum of 250 devices if thecombined number of ACD Groups plus Hunt Groups plus CallingGroups in the system is less than 70. Alternatively a V3000 systemsupports the maximum number of ACD Groups plus Hunt Groups plusCalling Groups, 100, if the number of devices in the system is lessthan 100.■ An NBX 100 can provide acceptable performance for the maximum of200 devices if the combined number of ACD Groups plus HuntGroups plus Calling Groups in the system is less than 50.Guidelines:■ 5 devices for every ACD Group plus Hunt Group plus Calling Group■ 75 Phantom mailboxes for every ACD Group plus Hunt Group plusCalling Groupor500 Account codes for each ACD Group plus Hunt Group plus CallingGroup. For example, on a V3000 system, to have 75 Groups and 250devices , you can have no more than 2500 Account codes and 150Phantom mailboxes.Licensed DeviceLimitsCertain devices and applications have limits that are governed by licenses.Device licensing is explained in detail in “Device Licenses” on page 72.Your 3Com NBX Voice-Authorized Partner can provide details on availableincremental device licences.