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.

Key System

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

Kilobyte

A thousand bytes (Usually 1024 bytes).

KBPS

Kilobytes Per Second.