trunk A telecommunications channel between your switch and the local or long distance calling network. Trunks of the same kind connecting to the same end points are assigned to the same trunk group.
trunk code A dial code of 1, 2, or 3 digits that you dial to access a trunk group to place an outside call.
voice terminal A telephone equipped with an array of specially designed features (for example, speakerphone, display, administrable buttons, etc.) and functional capabilities that distinguish it from a conventional telephone.
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