A telephone with a
receiver arousing bone-conduction and air-conduction hearing converts an input electric voice
signal into vibration and acoustic signals. Since a conventional telephone has a
receiver for only air-conduction hearing, a
hearing impaired person cannot use the conventional telephone. In case of a bone-conduction telephone using a bone-conduction vibrator as a
receiver, this vibrator is only used for bone-conduction hearing, so that an additional telephone is needed when the ordinary person and the
hearing impaired person live in the same place. The telephone with a receiver arousing bone-conduction and air-conduction hearing uses a vibrator of smoothly arousing bone-conduction and air-conduction hearing as a receiver, is capable of hearing a vibration
signal through bone-conduction hearing as well as an acoustic
signal through air-conduction hearing, makes a hearing-impaired person with conductive
hearing loss and an old person who has difficulty in air-conduction hearing use bone-conduction hearing, and makes an ordinary person having a normal sense of hearing use either bone-conduction hearing in a
noise environment or air-conduction hearing in a normal environment.