I m p o r t a n t S a f e t y I n f o r m a t i o nCopyright © 2004 Nokia. All rights reserved. 69Hearing aidsSome digital wireless phones mayinterfere with some hearing aids. In theevent of such interference, you may wantto consult your service provider.Other medical devicesOperation of any radio transmittingequipment, including cellular phones,may interfere with the functionality ofinadequately protected medical devices.Consult a physician or the manufacturerof the medical device to determine if theyare adequately shielded from external RFenergy or if you have any questions.Switch off your phone in health carefacilities when any regulations posted inthese areas instruct you to do so.Hospitals or health care facilities may beusing equipment that could be sensitiveto external RF energy.VehiclesRF signals may affect improperlyinstalled or inadequately shieldedelectronic systems in motor vehicles (e.g.electronic fuel injection systems,electronic anti-skid (anti-lock) brakingsystems, electronic speed controlsystems, air-bag systems). Check withthe manufacturer or its representativeregarding your vehicle. You should alsoconsult the manufacturer of anyequipment that has been added to yourvehicle.Posted facilitiesSwitch your phone off in any facilitywhere posted notices so require.■ Potentially explosiveatmospheresSwitch off your phone when in any areawith a potentially explosive atmosphereand obey all signs and instructions.Sparks in such areas could cause anexplosion or fire resulting in bodily injuryor even death.Users are advised to switch off the phonewhen at a refuelling point (servicestation). Users are reminded of the needto observe restrictions on the use of radioequipment in fuel depots (fuel storageand distribution areas), chemical plantsor where blasting operations are inprogress.Areas with a potentially explosiveatmosphere are often but not alwaysclearly marked. They include below deckon boats; chemical transfer or storagefacilities; vehicles using liquifiedpetroleum gas (such as propane orbutane); areas where the air containschemicals or particles, such as grain, dustor metal powders; and any other areawhere you would normally be advised toturn off your vehicle engine.■ VehiclesOnly qualified personnel should servicethe phone, or install the phone in avehicle. Faulty installation or service maybe dangerous and may invalidate anywarranty which may apply to the unit.Check regularly that all wireless phoneequipment in your vehicle is mountedand operating properly.Do not store or carry flammable liquids,gases or explosive materials in the samecompartment as the phone, its parts oraccessories.