2006 Mercedes C-Class Owner's Manual - Page 227

Controls in detail Audio system i If the PIN is entered incorrectly three times, NEED PUK will appear in the display. Enter PUK via your telephone. Please refer to the separate telephone operating instructions for more information. Adjusting the volume Turn rotary control of N button during a telephone call. The volume will increase or decrease depending on the direction turned. 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 telephone book, the name will appear in the display. Phone book The numbers stored in the phone book of the telephone can be called up either by name or number. In addition, incoming calls are stored in the phone book. 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. i The volume can be adjusted separately for telephone mode and audio mode. Adjusting sound Adjust sound during a telephone call. Sound adjustment ( page 203). 226