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Term Definition
DID (Direct Inward Dial) A specially configured phone line from the telephone company that allows for dialing inside a company directly without having to go through an attendant. A DID line cannot be used for outdial operation since there is no dialtone offered. However, it can be configured so an outside caller can reach an inside extension with a 7-digit number through the phone company's central office.
DTMF (Dual-Tone Multi Frequency) The type of audio signals generated when you press the buttons on a touch-tone telephone.
Dynamic Jitter Buffer Collects voice packets, stores them, and shifts them to the voice processor in evenly spaced intervals to reduce any distortion in the sound.
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