Sprint SPHM100SS Manual page 147

Using your Phone Near Other
Electronic Devices
Most modern electronic equipment is shielded from radio
frequency (RF) signals. However, RF signals from wireless
phones may affect inadequately shielded electronic
equipment.
RF signals may affect improperly installed or inadequately
shielded electronic operating and entertainment systems in
motor vehicles. Check with the manufacturer or its
representative to determine if these systems are adequately
shielded from external RF signals. Also check with the
manufacturer regarding any equipment that has been
added to your vehicle.
Consult the manufacturer of any personal medical devices,
such as pacemakers and hearing aids, to determine if they
are adequately shielded from external RF signals.
Turning Off your Phone Before Flying
Turn off your phone before boarding any aircraft. To
prevent possible interference with aircraft systems, the U.S.
Federal Aviation Administration (FAA) regulations require
you to have permission from a crew member to use your
phone while the plane is on the ground. To prevent any risk
of interference, FCC regulations prohibit using your phone
while the plane is in the air.
Knowing Performance and Safety Guidelines 139
Tip:
Always turn off the
phone in health care
facilities and request
permission before
using the phone near
medical equipment.