93 Safety• Use your phone to help others in emergencies.• Call roadside assistance or a special non-emergency wireless number whennecessary.Following Safety GuidelinesTo operate your phone safely and efficiently, always follow any special regulationsin a given area. Turn your phone off in areas where use is forbidden or when it maycause interference or danger.Using Your Phone Near Other Electronic DevicesMost modern electronic equipment is shielded from radio frequency (RF) signals.However, RF signals from wireless phones may affect inadequately shieldedelectronic equipment.RF signals may affect improperly installed or inadequately shielded electronicoperating systems and/or entertainment systems in motor vehicles. Check with themanufacturer or their representative to determine if these systems are adequatelyshielded from external RF signals. Also check with the manufacturer regarding anyequipment that has been added to your vehicle.Consult the manufacturer of any personal medical devices, such as pacemakersand hearing aids, to determine if they are adequately shielded from external RFsignals.Note: Always turn off the phone in health care facilities and request permissionbefore using the phone near medical equipment.Turning Off Your Phone Before FlyingTurn off your phone before boarding any aircraft. To prevent possible interferencewith aircraft systems, U.S. Federal Aviation Administration (FAA) regulationsrequire you to have permission from a crew member to use your phone while theplane is on the ground. To prevent any risk of interference, FCC regulations prohibitusing your phone while the plane is in the air.Turning Off Your Phone in Dangerous AreasTo avoid interfering with blasting operations, turn off your phone when in ablasting area or in other areas with signs indicating that two-way radios should beturned off. Construction crews often use remote-control RF devices to set offexplosives.