2004 Mercedes C-Class Owner's Manual - Page 198

Controls in detail Audio system Emergency call Press button 4 longer than one second. A call will be placed to the saved number (e.g. 911). The call will also be placed even if the unlock code is not entered. Emergency calls may not be possible with all telephone networks or if certain network services and/or telephone functions are active. Check with your local network operation company. It may take some time to set up an emergency call. To use this function you must ensure that the number stored in memory location 1 is the number to be dialed in case of emergency. If an emergency call cannot be connected, the message SYSTM BUSY appears. Accepting an incoming call Accepting an incoming call in telephone mode With an incoming call, a ringing tone can be heard and the caller's telephone number, or the name under which this telephone number has been saved in the telephone book, appears on the display. If the caller's number is not transmitted, CALL will appear in the display. Press the SND key to accept call. ! Please be aware that the 911 emergency call system is a public service. Using it without due cause is a criminal offense. You can make an emergency call to an emergency rescue station with a mobile communications network. The emergency call will be placed as long as the corresponding mobile communications network is available. To do this, switch the telephone on if this has not already been done. 198