Wired and wireless audio-video-control extenders for extending audio and video and control signals; fiber optic audio-video-control extenders for extending audio and video and control signals over fiber optic cable, namely, fiber optic senders, fiber optic receivers, fiber optic cables and fiber optic connectors; distribution amplifiers for audio-video-control signals; audio-video-control signal splitters; electronic switchers for audio-video-control signals; matrix switchers for audio-video-...

telecommunications calling card services

telecommunications services; namely, the electronic transmission of voice, facsimile, data, video and information