Most voice-over-Internet Protocol (VoIP) systems install on a home computer and require a special modem.

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As expected, Skype and Avaya are joining hands by linking their Internet Protocol (IP)-based communications systems.

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In a world where a growing number of devices have Internet protocol addresses, building security into these systems has never been more important.

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Cisco Systems is helping enterprises prepare for the migration to IPv6 (Internet protocol version 6) from IPv4, which most of the world runs on today.

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Ballmer talked of the revolutionary implications of a world, perhaps five years away, where all media is delivered via Internet protocol, and said Microsoft would be everywhere--games, search, operating systems, hardware--to capture that.

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