2005 Mercedes C-Class Owner's Manual - Page 224

Controls in detail Audio system Placing a "911" emergency call using audio head unit with the phone unlocked Press h button to switch to telephone operation. Enter 911 using the number keypad on the audio head unit. Press s button for dialing to begin. DIALING appears in the audio display TDMA/CDMA network phones Placing a "911" emergency call using audio head unit with the phone locked Press h button to switch to telephone operation. CODE? appears in the audio display. Placing a "911" emergency call using audio head unit with the phone unlocked Press h button to switch to telephone operation. Enter 911 using the number keypad on the audio head unit. Press s button for dialing to begin. DIALING appears in the audio display Enter 911 using the number keypad on the audio head unit. Press OK soft key or s button for dialing to begin. DIALING appears in the audio display while the telephone establishes the connection. Wait until the emergency call center answers, then describe the emergency. while the telephone establishes the connection. Wait until the emergency call center answers, then describe the emergency. i If no SIM card is in the mobile phone, NO SERVICE appears in the audio display. In that case, you only can make an emergency call on the mobile phone itself, without the use of the head unit. while the telephone establishes the connection. Wait until the emergency call center answers, then describe the emergency. 222