Spec Sheet Preview: The Alpha Communications® / Elvox 6204 (Petrarca Style) handsets are part of the 8-digit Digi-Bus™ Digital Electronic Audio Door Entry System, that can be used in Luxury Apartment Buildings, Assisted Living Facilities, Dormitories, Health Care Facilities, Hotels, Motels, Schools, Offices, Bowling Alleys and Supermarkets. The 6204 series are advanced handsets, using up to an 8-digit user code programmed directly from the entrance panel or switchboard. The DigiBus™ system is ideal for large building units because&nbs …