A d d i t i o n a l s a f e t y i n f o r m a t i o n49Copyright © 2006 Nokia. All rights reserved.would normally be advised to turn off your vehicle engine.Sparks in such areas could cause an explosion or fire resulting inbodily injury or even death. Switch off the device at refuelingpoints such as near gas pumps at service stations. Observerestrictions on the use of radio equipment in fuel depots,storage, and distribution areas; chemical plants; or whereblasting operations are in progress. Areas with a potentiallyexplosive atmosphere are often, but not always, clearly marked.They include below deck on boats, chemical transfer or storagefacilities, vehicles using liquefied petroleum gas (such aspropane or butane), and areas where the air contains chemicalsor particles such as grain, dust, or metal powders.■ Emergency callsImportant: Wireless phones, including this device,operate using radio signals, wireless networks, landlinenetworks, and user-programmed functions. Because ofthis, connections in all conditions cannot beguaranteed. You should never rely solely on anywireless device for essential communications likemedical emergencies.