phone extension leads, Voice over internet protocol (VOIP) phone adapter; paging equipment; paging apparatus; Interoperable communication system designed to provide radio, streaming video, wireless internet, and VOIP phone; intercoms; telephone apparatus, namely, intercoms; mounts and mounting brackets adapted for intercoms; mounting racks for telecommunications hardware; keypads for use with secure access systems; alert devices for use in telecommunications visual and audio notifications; Public address (PA) and sound system accessories, namely, microphone stands, speaker stands, microphone ecables, speaker cables, speaker boxes and sound mixers; microphones for VoIP communications; Sound systems comprising remote controls, amplifiers, loudspeakers and components therefor; loudspeaker amplifiers; paging servers; VoIP paging servers with bell schedulers; computer network switches; Ethernet adapters; ethernet switches; 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; Free-space optics transmission systems, Ethernet switches and routers, and software sold both as components thereof and separately, namely, software adapted and arranged for operating, installing, testing, diagnosing and managing the forgoing telecommunication equipment; VoIP industrial telephones; stainless steel industrial telephone cases; acrylic industrial telephone cases