2003 Mercedes C-Class Owner's Manual - Page 185

Controls in detail Audio system Speed dialing Input the desired entry number using the number keys 1 to 0. A maximum of two digits can be entered. If necessary, correct the last number entered with the CLR key. Press the SND key. The telephone number stored under that entry will be dialed. The number, L and the full entry number will be shown in the display. Express dialing Press one of the desired number buttons 1 to 0 longer than one second. The telephone number saved under that number will be dialed. Emergency call Press button 1 longer than one second. A call will be placed to the saved number (e.g. 911). 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. ! 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 not already done so. The call will also be placed if the unlock-code is not entered. If an emergency call cannot be connected, the message SYSTM BUSY appears. ! Please be aware that button 1 might already be reserved for an emergency call number. 185