Patent ID: 6993368

Claim:
A mobile telephone device as part of a hands-free device in a motor vehicle, private automobiles, heavy goods vehicles and other utility vehicles, comprising an electronic control device for the hands-free device, a base member ( 1 ) which can be installed in the motor vehicle and an interchangeable holding member for temporarily receiving a mobile telephone, wherein the base member ( 1 ) and the holding member ( 11 ) has or have a mechanical connecting device and an electrical and electronic contacting device ( 10 ) for the holding member, characterized in that there is provided at least one module unit ( 20 ) which forms an expansion and memory unit and which has an analog function unit and a digital memory device and a digital function unit, wherein the base member ( 1 ) and the holding member ( 11 ) has or have a receiving means ( 8 ) for the module unit ( 20 ), wherein the module unit can be inserted into the receiving means ( 8 ) while the base member ( 1 ) is installed in the motor vehicle, wherein the receiving means ( 8 ) has electrical and electronic contact elements at the receiving means side and the module unit ( 20 ) which can be releasably inserted into the receiving means ( 8 ) has electrical and electronic contact elements at the module side, which are arranged in corresponding relationship with the contact elements at the receiving means side, and that when the module unit ( 20 ) is engaged in position it is conductingly connected to the control device by way of the contact elements.