Yes - You will need to order a device registration license for each room kit. The SKU depends on the webex licensing model as well as the part number of the room kit (GPL vs MSRP). For 3 user, you will need to look at A-SPK-SH, and pick 3 of the appropriate devices.
Getting Started
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: