22safety and usage information• should use the ear opposite the pacemakerto minimize potential interference.If you have any reason to suspect thatinterference is taking place, switch your phoneoff immediately.Hearing AidsSome digital wireless phones may interfere withsome hearing aids. In the event of suchinterference, you may wish to consult yourhearing aid manufacturer to discuss alternatives.Other Medical DevicesIf you use any other personal medical devices,consult the manufacturer of your device todetermine if it is adequately shielded fromexternal RF energy. Your physician may be ableto assist you in obtaining this information.Switch your phone off in health care facilitieswhen any regulations posted in these areasinstruct you to do so. Hospitals or health carefacilities may be using equipment that could besensitive to external RF energy.VehiclesRF signals may affect improperly installed orinadequately shielded electronic systems inmotor vehicles. Check with the manufacturer orits representative regarding your vehicle. Youshould also consult the manufacturer of anyequipment that has been added to your vehicle.Posted FacilitiesSwitch your phone off in any facility whereposted notices require you to do so.Potentially Explosive EnvironmentsSwitch your phone off when in any area with apotentially explosive atmosphere and obey allsigns and instructions. Sparks in such areascould cause an explosion or fire resulting inbodily injury or even death.Users are advised to switch the phone off whileat a refueling point (service station). Users arereminded of the need to observe restrictions onthe use of radio equipment in fuel depots (fuel