A telephone voice containment device is described. It includes a housing which is shaped to receive a voice pick-up mechanism of a telephone in order to capture the voice utterances to be picked up by such phone, and at the same time prevent the voice utterances from escaping to the area surrounding the telephone. An elastic band is included to hold the telephone casing and, hence, its pick-up mechanism in the housing. A sound absorbing structure is most desirably included within the housing to absorb voice utterances not needed by the telephone pick-up mechanism.