Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating, or controlling electricity; apparatus for recording, transmission, or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; computer hardware; computer software; computer peripherals; computers and data processing equipment; telephones, IP telephones, computer telephony software, and telephone equipment and apparatus; computer hardware and computer software and manuals sold in electronic form sold as a unit, for the management, administration, and control by others of telecommunications systems, communications systems, private branch exchange systems, and call distribution systems; telecommunication and communications switches, routers, and servers; computer software for installing telecommunications systems, communications systems, private branch exchange systems, and call distribution systems and for training others in the use and operation of telecommunications systems, communications systems, private branch exchange systems, and call distribution systems

Building construction; repair; installation services; installation, maintenance, and repair of telecommunications systems, communications systems, private branch exchange systems, call distribution systems, and computer networks; installation, maintenance, and repair for others of telecommunications systems, communications systems, private branch exchange systems, call distribution systems, and computer networks; installation and maintenance for others of hardware for telecommunications systems, communications systems, private branch exchange systems, and call distribution systems