Computers; data processing apparatus, namely data processors; recorded computer programs for use in database management, for use as a spreadsheet, for word processing, for use in system operating; recorded computer operating programs; recorded computer software for use in database management, for use as a spreadsheet, for word processing, for use in system operating; information processing engines and central processing devices, namely, computer hardware and central processing units; transmitters of electronic signals; optical communication equipment, namely, SDH optical transport systems, namely, terminal multiplexers, add/drop multiplexers, regenerators and computer programs for managing optical networks; network communication equipment, namely, computer routers, modems, digital subscriber line access multiplexers, wires, servers, switches, set-top boxes and homegateway; programme control phone exchange facility, namely, program-controlled telephones exchange system, subscriber line board and trunk line board