A holding device (1) according to the invention for a communications unit (33, 36) contains a base element (2), a carrier (7) which is pivotably articulated on the base element (2), which can be pivoted away by means of spring force from the base element (2) and onto which the communications unit (33, 36) can be pushed with its one end against stop means (110), which hold the communications unit (33, 36), and a locking device (27), which is present on the base element (2) in order to lock the other end of the communications unit (33, 36) when the carrier (7) is pivoted towards the base element (2), the locking device (27) pressing the communications unit (33, 36) against the stop means (110).