2008 Mercedes C-Class Owner's Manual - Page 224

Controls in detail Audio system TEL Menu Telephone Phone list Receive Business Card(s) (vCards) Delete external data General notes Making calls via Bluetooth® interface The audio system telephone function via the Bluetooth® interface is available in conjunction with a Bluetooth® enabled telephone. With a suitable telephone, you can use the hands-free device and receive electronic business cards (vCards) via the Bluetooth® interface. Further information on suitable telephones and on connecting Bluetooth® enabled telephones to the audio system are available at an authorized Mercedes-Benz Center. Calls disconnected while the vehicle is in motion Interruptions to the connecting may occur if there is insufficient mobile network coverage in certain regions. you move from one mobile network transmitter/receiver area (mobile network cell) into another and no channels are free or the cell is full. you are using a SIM card that is not compatible to the available network. when using a telephone with "Twincard", the telephone is simultaneously logged into the network with the second SIM card. Name Phone book Call lists Microphone off/on Call Lists Delete Call Lists Mic On/Mic Off 223