| 摘要 |
<p>While a speaker cover (15) is depressed against a telephone transmitter port (mouthpiece) (27) of a telephone transmitter/receiver (handset) (26) of a telephone set, when a speaker (14) is moved backwardly together with the speaker cover (15) along guide rails (16), force externally applied to this speaker (14) is sensed by a sensor unit (18), and a DTMF signal is transmitted from a DTMF signal transmitting unit (13) in response to the sensing result under control of a control unit (11). Then, this DTMF signal is transmitted as a dialing tone from the speaker (14) to the telephone transmitter port (27), so that the telephone set is automatically dialed. <IMAGE></p> |
