Hands-free type automobile telephone and general-purpose telephone

Claim 1

A hands-free type automobile telephone and a general-purpose telephone comprising: a handset having a transmitter at one end thereof and a receiver at the other end thereof; a cradle-shaped coupler mounted in a vehicle for supporting said handset at opposite ends thereof through a pair of swingable support plates, said cradle-shaped coupler provided with a case and a two-way amplifier circuit having a small-sized speaker oppositely disposed from said transmitter of said handset and a microphone oppositely disposed from said receiver of said handset, said small-sized speaker being mounted on a back surface of one of said support plates so as to be swingable, said microphone being mounted on a back surface of the other of said support plates so as to be swingable, said support plates being provided with locking means for locking said handset to said cradle-shaped coupler so as to press said transmitter and said receiver of said handset against said support plates; a separate microphone connected with said speaker of said cradle-shaped coupler through an electronic circuit; and a separate speaker connected with said microphone of said cradle-coupler through said electronic circuit; whereby said telephone is used through said separate speaker and said separate microphone in hands-free condition in a condition in which said handset is mounted in said cradle-shaped coupler.