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Keyphone

A telephone for use with a particular make and model of telephone system which incorporates features allowing it to communicate with the telephone system and display information, typically by means of lights, buttons and visual displays.

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Key System

A telephone system designed for all extensions to answer incoming calls. The distribution of all incoming calls across a business or team.

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Kilobyte

A thousand bytes (Usually 1024 bytes).

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KBPS

Kilobytes Per Second.