3.3 operative system 3.3 is the Fantoni range that meets the complex needs of working offices, call centres and contact centres. Desks which can be joined together to create configurations for different working methods. Drawer boxes on casters so that operators can move around more easily. Side tables and accessories to make the office complete and functional. Individual or multiple work stations that are always comfortable and easy to personalise. 3.3: the new office dimension.