| 摘要 |
A telephone set includes an input unit having a call button for originating and answering calls, and an end button for terminating calls. The telephone set also includes a control unit, a display unit, voice signal communication circuits, and sound circuits for generating sound effects when the control unit is in a special mode. In one embodiment, the call button is ignored when the control unit is in the special mode, and the special mode is terminated when the end button is pressed. In another embodiment, the special mode is terminated when either the call button or end button is pressed. The special mode operates independent of the communication circuits.
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