Cell Phone User's Guide

105
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 they are 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 anti-skid (anti-lock) 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 while 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.
Areas with a potentially explosive atmosphere are often but not
always clearly marked. They include below deck on boats;
chemical transfer or storage facilities; vehicles using liquefied
petroleum gas (such as propane or butane); areas where the air
contains chemicals or particles, such as grain, dust or metal
powders; and any other area where you would normally be
advised to turn off your vehicle engine.