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Hearing aids
Some digital wireless phones may interfere with some hearing aids. In the
event of such interference, you may want to consult your service provider.
Other medical devices
Operation of any radio transmitting equipment, including cellular phones,
may interfere with the functionality of inadequately protected medical
devices. Consult a physician or the manufacturer of the medical device to
determine if it is adequately shielded from external RF energy or if you have
any questions. Switch off your phone in health care facilities when any
regulations posted in these areas instruct you to do so. Hospitals or health
care facilities may be using equipment that could be sensitive to external
RF energy.
Vehicles
RF signals may affect improperly installed or inadequately shielded electronic
systems in motor vehicles (for example, electronic fuel injection systems,
electronic untested/antilock braking systems, electronic speed control
systems, air bag systems). Check with the manufacturer or its representative
regarding your vehicle. You should also consult the manufacturer of any
equipment that has been added to your vehicle.
Posted facilities
Switch your phone off in any facility where posted notices so require.
Potentially explosive atmospheres
Switch off your phone when in any area with a potentially explosive
atmosphere and obey all signs and instructions. Sparks in such areas could
cause an explosion or fire resulting in bodily injury or even death.
Users are advised to switch off the phone when at a refueling point
(service station). Users are reminded of the need to observe restrictions on
the use of radio equipment in fuel depots (fuel storage and distribution
areas), chemical plants, or where blasting operations are in progress.