Abstract: The mouthpiece and the earpiece (3, 4) of the automobile telephone apparatus are held at the base (1) by means of respectively one locking means (30, 41). The locking means securing the earpiece (4) is constituted by a spring catch (41); the locking means for the mouthpiece (3) is constituted by a lug (30) formed at an elevation (15) of the base (1) or likewise by a spring catch. Upon cradling of the handset (2), both locking means (30, 41) engage into indentations (32, 51) of the mouthpiece and earpiece (3, 4). The handset (2) can be lifted off only by pressing a push button, arranged between the supporting surfaces of the base (1) for the earpiece and mouthpiece (3, 4), of a release means acting on the spring catch (41). The locking means (30, 41) reliably prevent detachment of the handset (2) from the base (1) during a collision and injury thereby to the occupants of the automobile.