Nokia 3100 and Nokia 3120 User Guide 67 Copyright © 2004 NokiaReference informationPotentially explosive environmentsSwitch off your device when in any area with a potentially explosive atmosphere andobey all signs and instructions. Potentially explosive atmospheres include areas whereyou would normally be advised to turn off your vehicle engine. Sparks in such areascould cause an explosion or fire resulting in bodily injury or even death. Switch offthe device at refuelling points such as near gas pumps at service stations. Observerestrictions on the use of radio equipment in fuel depots, storage, and distributionareas, chemical plants or where blasting operations are in progress. Areas with apotentially explosive atmosphere are often but not always clearly marked. Theyinclude below deck on boats, chemical transfer or storage facilities, vehicles usingliquefied petroleum gas (such as propane or butane), and areas where the air containschemicals or particles such as grain, dust or metal powders.FCC regulations prohibit using your wireless device while in the air. The use of wirelesstelephones in an aircraft may be dangerous to the operation of the aircraft, disruptthe wireless telephone network, and may be illegal.Failure to observe these instructions may lead to suspension or denial of telephoneservices to the offender, legal action, or both.• EMERGENCY CALLSWarning: Wireless phones, including this phone, operate using radio signals,wireless networks, landline networks, and user-programmed functions.Because of this, connections in all conditions cannot be guaranteed. Youshould never rely solely on any wireless phone for essential communicationslike medical emergencies.To make an emergency call:1 If the phone is not on, switch it on. Check for adequate signal strength. Somenetworks may require that a valid SIM card is properly inserted in the phone.2 Press the End key as many times as needed to clear the display and ready thephone for calls.3 Enter the official emergency number for your present location. Emergencynumbers vary by location.4 Press the Talk key.If certain features are in use, you may first need to turn those features off beforeyou can make an emergency call. Consult this guide or your service provider. Whenmaking an emergency call, give all the necessary information as accurately aspossible. Your wireless phone may be the only means of communication at thescene of an accident. Do not end the call until given permission to do so.