Is the unit allocation in the Cisco licensing program consistent across devices? A. Device licenses are required for Cisco devices and for third-party devices, with the flexibility to replace third-party devices with Cisco devices. Device licenses are sold in increments of device-license units.Device-license units are assigned to each device connected to Cisco Unified Communications Manager 5.0 and later. Each device is assigned a unit number based on the type and capabilities of the device.n the previous model, of the total price for a license and phone, an average of about 77 percent was the cost of the device; now the device constitutes about 69 percent on average of the total price. The shift in pricing from endpoints to licenses has been 8 percentage points on average.