Audio-receivers and video-receivers; Audio dubbing apparatus; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Computer network adapters, switches, routers and hubs; Computer network hubs, switches and routers; Computer network switches; Computer switches; Data cables; Digital telephone switching apparatus; Fiber optic connectors; Junction boxes; Optical fibres, telephone receivers, switchboards, telephone and telegraph wires, video telephones; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Telephone terminal; Transmitters of electronic signals; Video receivers; Video servers; Wireless communication devices for voice, data or image transmission; KVM switches; Telecommunication switches