At least three major wireless protocols -- INSTEON, ZigBee and Z-Wave -- vie for adoption in wall switches for lighting.

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The lighting, camera angles, wall-colour, acoustics and furniture are all designed to make two Halo systems feel like a single room when linked together, and to do away with the 15 minutes of messing around usually required to set up videoconferencing gear.

ECONOMIST: Videoconferencing

The low lighting highlights the impressive namesake statue perched atop the cocktail shelving, a reference to Wall Street's fickle moods.

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