2006 Mercedes C-Class Owner's Manual - Page 233

Controls in detail Audio system Press OK soft key after entering correct code. The telephone is unlocked. If you have entered an incorrect code, you must enter the correct code. Switching off the telephone Press h button for approx. 3 seconds. PROCESSING appears in the display until Adjusting sound Adjust sound during a telephone call. Sound adjustment ( page 203). Placing a call Entering a telephone number and starting the dialing process If necessary, correct number entered with the CLR soft key. Press soft key briefly to delete the last digit entered; press soft key and hold to delete the complete number. After correct telephone number has been entered, press s button. i If the telephone number has been saved together with a name in the phone book, the name will appear in the display. Phone book the telephone is off. Afterward, PHONE OFF appears in the display. Adjusting the volume Turn rotary control of N button during a telephone call. The volume will increase or decrease depending on the direction turned. Enter desired telephone number using buttons 1 to R. The number can have up to 32 digits, but only twelve of these are visible in the display. The numbers stored in the phone book of the mobile telephone can be called up either by name or number. In addition, incoming calls are stored in the phone book. i The volume can be adjusted separately for telephone mode and audio mode. 232