Nokia 252 Owner's Manual page 73

• Should always keep the phone more than 6 inches (20 cm)
from their pacemaker when the phone is switched on;
• Should not carry the phone in a breast pocket;
• Should use the ear opposite the pacemaker to minimize the
potential for interference.
• If you have any reason to suspect that interference is taking
place, switch off your phone immediately.
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 pro-
tected 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 (e.g. electronic fuel injection
systems, electronic anti-skid (anti-lock) braking systems, electronic
speed control systems, air bag systems). Check with the manufac-
turer 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.
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