In a country like South Korea, or in an area like Hong Kong, where they have insanely high bandwidth rates at very low prices, there is nothing standing in the way of video conferencing software that "perfectly" emulates face-to-face communication.

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Skype's software offers free phone calling and video conferencing, though you need a headset with your PC to take advantage of it.

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Looking to solidify its dominance in the business communications market, Avaya on Wednesday unveiled a tablet device and new software designed to unite phone calls, instant messages and video conferencing in one easy-to-use platform.

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In theory, government agents who are scattered geographically will be able to log on and meet "face to face" as realistic avatars in a digital conference room equipped with video and audio conferencing, presentation applications, and file sharing, all provided by IBM's unified communications software.

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