Electric and electronic video surveillance installations; Electronic interconnecters for audio and video signals; Electronic scalers for audio and video signals; Electronic switchers for audio and video signals; Integrated circuits, integrated circuit chips, and integrated circuit modules for digital video compression and decompression; Integrated circuits, integrated circuit chips, and integrated circuit modules for encoding and decoding digital video; Interactive multimedia software featuring audio and video information for patients on the subject of treatments, procedures and alternatives related to dentistry; Interoperable communication system designed to provide radio, streaming video, wireless internet, and VOIP phone; Telecommunications and data networking hardware, namely, devices for transporting and aggregating voice, data, and video communications across multiple network infrastructures and com munications protocols; television and video converters; Transmitters and receivers for audio and video signals for transmission over twisted pair cables; Video circuit boards; Video multiplexers; Video recorders and video reproducing apparatus; Video telephones; Video transmission apparatus; Video-telephones; Wireless communication device featuring voice, data and image transmission including voice, text and picture messaging, a video and still image camera, also functional to purchase music, games, video and software applications over the air for downloading to the device