Abstract: A telephone set housing (1) is disclosed having at least one cradle (2) arranged in a base component of the housing for receiving the handset. In the region of the cradle, a filler body (5) is provided which, for a desk application of the telephone set housing (1), flushes with the cradle (2), whereas, for the use of the telephone set (1) as a wall-mounted set, a projection (1) which is integrally connected to the filler body projects beyond the contours of the cradle (2). The filler body (5) is secured in such manner that the subscriber himself/herself can easily convert the telephone set housing (1) for desk or wall-mounted application. For this purpose, there is provided at least one freely accessible recess (3) in the region of the cradle (2) into which recess the filler body (5) can be inserted by means of a catch connection in two operating positions.