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English
SERVICE ACTIVATION
If you are a new T-Mobile® customer
and your service has not been
activated, simply call Customer
Care at 1-800-937-8997 from
your landline phone and a T-Mobile
Activations representative will assist
you. You will need the following
information when activating service:
• Service Agreement and agent code
on your Agreement.
• Your name, home address, home
phone, and billing address.
NOTE
For business and government
accounts, please provide the name
of your company or government
agency, address, and tax ID.
• Your Social Security number,
current driver’s license number,
and date of birth for credit check
purposes.
• Your choice of T-Mobile rate plan
and services (see www.t-mobile.com
for the latest plan information).
• SIM serial number and IMEI
number (located on the box bar
code label).
2
By activating service, you acknowledge
that you have read, understand,
and agree to be bound by each of
T-Mobile’s Terms and Conditions and
your Service Agreement.
About this user manual
Please read this user manual carefully
before you use your phone and keep
it handy for future reference.
Should your phone fails to operate
correctly, refer to the FAQ section.
• Some features and service may
vary by area, phone, carrier, plan
and version of phone software.
• Screen displays and illustrations on
this user manual may differ from
those you see on the actual phone.
• Designs and specifications of the
phone and other accessories are
subject to change without any
notice.
Please read and observe the
following information for safe and
proper use of your phone and to
prevent damage.
WARNING! This product contains
chemicals known to the State of
California to cause cancer and
birth defects or reproductive
harm.
Wash hands after handling.
Violation of the instructions
may cause minor or serious
damage to the product.
• Do not disassemble or open
crush, bend or deform,
puncture or shred.
• Repairs under warranty, at
LG’s option, may include
replacement parts or boards
that are either new or
reconditioned, provided that
they have functionality equal to
that of the parts being replaced.
• Do not modify or
remanufacture, attempt to insert
foreign objects into the battery,
immerse or expose to water
or other liquids, expose to fire,
explosion or other hazard.
• Only use the battery for the
system for which it is specified.
• Only use the battery with a
charging system that has
been qualified with the system
per this standard. Use of an
unqualified battery or charger
may present a risk of fire,
explosion, leakage, or other
hazard.
• Do not short circuit a battery
or allow metallic conductive
objects to contact battery
terminals.
• Replace the battery only with
another battery that has been
qualified with the system per
this standard, IEEE-Std-1725200x. Use of an unqualified
battery may present a risk of
fire, explosion, leakage or other
hazard.
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For Your Safety
• Promptly dispose of used
batteries in accordance with
local regulations.
• Battery usage by children
should be supervised.
• Avoid dropping the phone or
battery. If the phone or battery
is dropped, especially on a hard
surface, and the user suspects
damage, take it to a service
center for inspection.
• Improper battery use may result
in a fire, explosion or other
hazard.
• For those host devices that
utilize a USB port as a charging
source, the host device’s
user manual shall include a
statement that the phone shall
only be connected to products
that bear the USB-IF logo or
have completed the USB-IF
compliance program.
Charger and Adapter Safety
• The charger and adapter are
intended for indoor use only.
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• Insert the battery pack charger
vertically into the wall power
socket.
• Unplug the power cord and
charger during lightning storms
to avoid electric shock or fire.
• Use the correct adapter for your
phone when using the battery
pack charger abroad.
Battery Information and
Care
• Please read the manual of
proper installation and removal
of the battery.
• Please read the manual
of specified charger about
charging method.
• Do not damage the power cord
by bending, twisting, or heating.
Do not use the plug if it is loose
as it may cause electric shock
or fire.
Do not place any heavy items
on the power cord. Do not allow
the power cord to be crimped
as it may cause electric shock
or fire.
• Unplug the power cord prior to
cleaning your phone, and clean
the power plug pin when it’s
dirty. When using the power
plug, ensure that it’s firmly
connected. If not, it may cause
excessive heat or fire. If you put
your phone in a pocket or bag
without covering the receptacle
of the phone (power plug pin),
metallic articles (such as a coin,
paperclip or pen) may shortcircuit the phone. Short-circuit
of the terminal may damage the
battery and cause an explosion.
Always cover the receptacle
when not in use.
• Recharge the battery after long
periods of non-use to maximize
battery life. Battery life will
vary due to usage pattern and
environmental conditions.
• Never store your phone in
temperature less than -4 °F or
greater than 122 °F.
• Charging temperature range
is between 32 °F and 113 °F.
Do not charge the battery out
of recommended temperature
range. Charging out of
recommended range might
cause the generating heat or
serious damage of battery.
And also, it might cause
the deterioration of battery’s
characteristics and cycle life.
• Do not use or leave the battery
under the blazing sun or in
heated car by sunshine. The
battery may generate heat,
smoke or flame. And also, it
might cause the deterioration
of battery’s characteristics or
cycle life.
• The battery pack has protection
circuit to avoid the danger. Do
not use near places that can
generate static electricity more
than 100V which could damage
the protection circuit. Damaged
protection circuits may generate
smoke, rupture or ignite.
• When using the battery for the
first time, if it emits a bad smell,
you see rust on it, or anything
else abnormal, do not use
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For Your Safety
the equipment and bring the
battery to the shop which it was
bought.
• Keep batteries away from
babies and small children. If
children use the battery, their
parents or legal guardians are
responsible for supervising and
teaching them about the safe
handling of batteries and how to
use batteries according to the
manual with care.
• If liquid from the battery rubs
against skin or clothing, wash
with fresh water. It may cause
the skin inflammation. Remove
and do not use the battery.
Be careful that children do
not swallow any parts (such
as earphone, connection
parts of the phone, etc.). This
could cause asphyxiation or
suffocation resulting in serious
injury or death.
• Do not handle the phone with
wet hands while it is being
charged. It may cause an
electric shock or seriously
damage your phone.
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• Do not place or answer calls
while charging the phone as
it may short-circuit the phone
and/or cause electric shock or
fire.
• Do not use harsh chemicals
(such as alcohol, benzene,
thinners, etc.) or detergents to
clean your phone. This could
cause a fire.
• Always unplug the charger
from the wall socket after
the phone is fully charged
to save unnecessary power
consumption of the charger.
Care and Maintenance
Your mobile device is a
product of superior design and
craftsmanship and should be
treated with care. The suggestions
below will help you fulfill any
warranty obligations and allow you
to enjoy this product for many
years:
Keep your Mobile Device
away from:
Liquids of any kind
Keep the mobile device dry.
Precipitation, humidity, and
liquids contain minerals that will
corrode electronic circuits. If the
mobile device does get wet, do
not accelerate drying with the use
of an oven, microwave, or dryer,
because this may damage the
mobile device and could cause a
fire or explosion.
Do not use the mobile device with
a wet hand.
Doing so may cause an electric
shock to you or damage to the
mobile device.
Do not try to dry your mobile
device in a microwave oven. Doing
so may cause a fire or explosion.
Dust and dirt
Do not expose your mobile device
to dust, dirt, or sand.
Sunscreen lotion
Do not expose or wear your device
to any liquid like sunscreen lotion.
Doing so may cause your device
to or damage to the mobile
device.
Cleaning solutions
Do not use harsh chemicals,
cleaning solvents, or strong
detergents to clean the mobile
device.
Wipe it with a soft cloths lightly
dampened in a mild soap-andwater solution.
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For Your Safety
Shock or vibration
Do not drop, knock, or shake the
mobile device.
Rough handling can break internal
circuit boards.
Paint
Do not paint the mobile device.
Paint can clog the device’smoving
parts or ventilation openings and
prevent proper operation.
General Notice
• An emergency call can be
made only within a service
area. For an emergency call,
make sure that you are within a
service area and that the phone
is turned on.
• Do not place items containing
magnetic components such as
a credit card, phone card, bank
book, or subway ticket near your
phone. The magnetism of the
phone may damage the data
stored in the magnetic strip.
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• Talking on your phone for a long
period of time may reduce call
quality due to heat generated
during use.
• When the phone is not used for
a long period time, store it in a
safe place with the power cord
unplugged.
• Using the phone in proximity to
receiving equipment (i.e., TV or
radio) may cause interference to
the phone.
• Do not use the phone if the
antenna is damaged. If a
damaged antenna contacts
skin, it may cause a slight
burn. Please contact an LG
Authorized Service Center to
replace the damaged antenna.
• The data saved in your phone
might be deleted due to
careless use, repair of the
phone, or upgrade of the
software. Please backup your
important phone numbers.
(Ringtones, text messages,
voice messages, pictures, and
videos could also be deleted.)
The manufacturer is not liable
for damage due to the loss of
data.
• When you use the phone in
public places, set the ringtone
to vibration so you don’t disturb
others.
• Do not turn your phone on or
off when putting it to your ear.
• Your phone is an electronic
device that generates heat
during normal operation.
Extremely prolonged, direct
skin contact in the absence
of adequate ventilation may
result in discomfort or minor
burns. Therefore, use care when
handling your phone during or
immediately after operation.
Use accessories, such as
earphones and headsets, with
caution. Ensure that cables are
tucked away safely and do not
touch the antenna unnecessarily.
FCC Part 15 Class B
Compliance
This device and its accessories
comply with part 15 of FCC
rules. Operation is subject to the
following two conditions: (1) This
device and its accessories may
not cause harmful interference,
and (2) this device and its
accessories must accept any
interference received, including
interference that causes undesired
operation.
Part 15.21 statement
Any changes or modifications
not expressly approved by the
manufacturer could void the
user’s authority to operate the
equipment.
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For Your Safety
Part 15.105 statement
This equipment has been tested
and found to comply with the
limits for a class B digital device,
pursuant to Part 15 of the FCC
Rules. These limits are designed
to provide reasonable protection
against harmful interference in
a residential installation. This
equipment generates uses and
can radiate radio frequency
energy and, if not installed
and used in accordance with
the instructions, may cause
harmful interference to radio
communications. However, there
is no guarantee that interference
will not occur in a particular
installation. if this equipment
does cause harmful interference
or television reception, which can
be determined by turning the
equipment off and on, the user is
encouraged to try to correct the
interference by one or more of the
following measures:
• Reorient or relocate the
receiving antenna.
14
• Increase the separation between
the equipment and receiver.
• Connect the equipment into
an outlet on a circuit different
from that to which the receiver
is connected.
• Consult the dealer or an
experienced radio/TV technician
for help.
FCC RF Exposure
Information
WARNING! Read this
information before operating
the phone.
In August 1996, the Federal
Communications Commission
(FCC) of the United States, with
its action in Report and Order
FCC 96-326, adopted an updated
safety standard for human
exposure to Radio Frequency (RF)
electromagnetic energy emitted
by FCC regulated transmitters.
Those guidelines are consistent
with the safety standard previously
set by both U.S. and international
standards bodies. The design of
this phone complies with the FCC
guidelines and these international
standards.
Bodily Contact During
Operation
This device was tested for typical
use with the back of the phone
kept 0.39 inches (1 cm) from
the body. To comply with FCC
RF exposure requirements, a
minimum separation distance
of 0.39 inches (1 cm) must be
maintained between the user’s
body and the back of the phone,
including the antenna, whether
extended or retracted. Third-party
belt-clips, holsters, and similar
accessories containing metallic
components should not be used.
Avoid the use of accessories that
cannot maintain 0.39 inches (1
cm) distance between the user’s
body and the back of the phone
and have not been tested for
compliance with FCC RF exposure
limits.
Vehicle-Mounted External
Antenna
(Optional, if available.)
To satisfy FCC RF exposure
requirements, keep 8 inches (20
cm) between the user / bystander
and vehicle-mounted external
antenna. For more information
about RF exposure, visit the FCC
website at www.fcc.gov.
Caution
Use only the supplied antenna.
Use of unauthorized antennas
(or modifications to the antenna)
could impair call quality, damage
the phone, void your warranty and/
or violate FCC regulations.
Don’t use the phone with a
damaged antenna. A damaged
antenna could cause a minor skin
burn. Contact your local dealer for
a replacement antenna.
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For Your Safety
Consumer Information
About Radio
Frequency Emissions
Your wireless phone, which
contains a radio transmitter and
receiver, emits radio frequency
energy during use. The following
consumer information addresses
commonly asked questions about
the health effects of wireless
phones.
Are wireless phones safe?
Scientific research on the subject
of wireless phones and radio
frequency (“RF”) energy has
been conducted worldwide for
many years, and continues. In
the United States, the Food and
Drug Administration (“FDA”) and
the Federal Communications
Commission (“FCC”) set policies
and procedures for wireless
phones. The FDA issued a
website publication on health
issues related to cell phone
usage where it states, “The
16
scientific community at large
… believes that the weight of
scientific evidence does not
show an association between
exposure to radiofrequency
(RF) from cell phones and
adverse health outcomes.
Still the scientific community
does recommend conducting
additional research to address
gaps in knowledge. That research
is being conducted around the
world and FDA continues to
monitor developments in this
field. You can access the joint
FDA/FCC website at http://
www.fda.gov (under “C” in the
subject index, select Cell Phones
> Research). You can also contact
the FDA toll-free at (888) 4636332 or (888) INFO-FDA. In
June 2000, the FDA entered
into a cooperative research and
development agreement through
which additional scientific research
is being conducted. The FCC
issued its own website publication
stating that “there is no scientific
evidence that proves that wireless
phone usage can lead to cancer
or a variety of other problems,
including headaches, dizziness or
memory loss.”
This publication is available at
http://www.fcc.gov/oet/rfsafety or
through the FCC at (888) 2255322 or (888) CALL-FCC.
What does “SAR” mean?
In 1996, the FCC, working with
the FDA, the U.S. Environmental
Protection Agency, and other
agencies, established RF
exposure safety guidelines for
wireless phones in the United
States. Before a wireless phone
model is available for sale to the
public, it must be tested by the
manufacturer and certified to
the FCC that it does not exceed
limits established by the FCC.
One of these limits is expressed
as a Specific Absorption Rate,
or “SAR.” SAR is a measure of
the rate of absorption of RF
energy in the body. Tests for SAR
are conducted with the phone
transmitting at its highest power
level in all tested frequency bands.
Since 1996, the FCC has required
that the SAR of handheld
wireless phones not exceed 1.6
watts per kilogram, averaged over
one gram of tissue.
Although the SAR is determined
at the highest power level, the
actual SAR value of a wireless
phone while operating can be less
than the reported SAR value. This
is because the SAR value may
vary from call to call, depending
on factors such as proximity
to a cell site, the proximity of
the phone to the body while in
use, and the use of hands-free
devices. Before a phone model
is available for sale to the public,
it must be tested and certified to
the FCC that it does not exceed
the limit established by the
government-adopted requirement
for safe exposure. The tests
are performed in positions and
locations (e.g., at the ear and worn
on the body) as required by the
FCC for each model.
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For Your Safety
The highest SAR value for this
model phone when tested for use
at the ear is 0.XX W/kg and when
worn on the body, as described
in this user guide, is X.XX W/kg
(body-worn measurements differ
among phone models, depending
upon available accessories and
FCC requirements).
While there may be differences
between SAR levels of various
phones and at various positions,
they all meet the government
requirement for safe exposure.
The FCC has granted an
Equipment Authorization for
this model phone with all
reported SAR levels evaluated
as in compliance with the FCC
RF emission guidelines. SAR
information on this model phone
is on file with the FCC and can
be found under the Display Grant
section of http://www.fcc.gov/oet/
ea/fccid/ after searching on FCC
ID ZNFP769.
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For more information about SARs,
see the FCC’s OET Bulletins 56
and 65 at http://www.fcc.gov/
Bureaus/Engineering_Technology/
Documents/bulletins or visit
the Cellular Telecommunications
Industry Association website at
http://www.ctia.org/consumer_
info/index.cfm/AID/10371. You
may also wish to contact the
manufacturer of your phone.
Can I minimize my RF
exposure?
If you are concerned about RF,
there are several simple steps
you can take to minimize your
RF exposure. You can, of course,
reduce your talk time. You can
place more distance between
your body and the source of the
RF, as the exposure level drops
off dramatically with distance.
The FDA/FCC website states that
“hands-free kits can be used with
wireless phones for convenience
and comfort. These systems
reduce the absorption of RF
energy in the head because the
phone, which is the source of the
RF emissions, will not be placed
against the head. On the other
hand, if the phone is mounted
against the waist or other part
of the body during use, then
that part of the body will absorb
more RF energy. Wireless phones
marketed in the U.S. are required
to meet safety requirements
regardless of whether they are
used against the head or against
the body. Either configuration
should result in compliance with
the safety limit.” Also, if you use
your wireless phone while in a
car, you can use a phone with
an antenna on the outside of
the vehicle. You should also read
and follow your wireless phone
manufacturer’s instructions for the
safe operation of your phone.
Do wireless phones
pose any special risks to
children?
The FDA/FCC website states that
“the scientific evidence does not
show a danger to users of wireless
communication devices, including
children.” The FDA/FCC website
further states that “some groups
sponsored by other national
governments have advised that
children be discouraged from
using wireless phones at all”. For
example, the Stewart Report
from the United Kingdom [“UK”]
made such a recommendation in
December 2000. In this report
a group of independent experts
noted that no evidence exists that
using a cell phone causes brain
tumors or other ill effects. [The
UK’s] recommendation to limit
cell phone use by children was
strictly precautionary; it was not
based on scientific evidence that
any health hazard exists. A copy
of the UK’s leaflet is available
at http://www.dh.gov.uk (search
19
For Your Safety
“mobile”), or you can write to:
NRPB, Chilton, Didcot, Oxon OX11
ORQ, United Kingdom. Copies of
the UK’s annual reports on mobile
phones and RF are available
online at www.iegmp.org.uk and
http://www.hpa.org.uk/radiation/
(search “mobile”). Parents who
wish to reduce their children’s RF
exposure may choose to restrict
their children’s wireless phone use.
Where can I get further
information about RF
emissions?
For further information, see the
following additional resources
(websites current as of April
Engineering in Medicine
and Biology Society,
Committee on Man and
Radiation (COMAR) of the
Institute of Electrical and
Electronics Engineers
http://ewh.ieee.org/soc/embs/
comar/
21
For Your Safety
TIA Safety
Information
The following is the complete TIA
Safety Information for wireless
handheld phones.
Exposure to Radio
Frequency Signal
Your wireless handheld portable
phone is a low power radio
transmitter and receiver. When
ON, it receives and sends out
Radio Frequency (RF) signals.
In August, 1996, the Federal
Communications Commissions
(FCC) adopted RF exposure
guidelines with safety levels for
handheld wireless phones. Those
guidelines are consistent with the
safety standards previously set
by both U.S. and international
standards bodies:
* American National Standards
Institute; National Council
on Radiation Protection and
Measurements; International
Commission on Non-Ionizing
Radiation Protection
Those standards were based
on comprehensive and periodic
evaluations of the relevant
scientific literature. For example,
over 120 scientists, engineers,
and physicians from universities,
government health agencies, and
industry reviewed the available
body of research to develop the
ANSI Standard (C95.1).
The design of your phone
complies with the FCC guidelines
(and those standards).
Antenna Care
Use only the supplied or an
approved replacement antenna.
Unauthorized antennas,
modifications, or attachments
could damage the phone and
may violate FCC regulations.
Phone Operation
NORMAL POSITION: Hold the
phone as you would any other
telephone with the antenna
pointed up and over your
shoulder.
Tips on Effi cient Operation
For your phone to operate most
efficiently:
Don’t touch the antenna
unnecessarily when the phone is
in use. Contact with the antenna
affects call quality and may
cause the phone to operate at a
higher power level than otherwise
needed.
Electronic Devices
Most modern electronic
equipment is shielded from RF
signals. However, certain electronic
equipment may not be shielded
against the RF signals from your
wireless phone.
Pacemakers
The Health Industry Manufacturers
Association recommends that a
minimum separation of six (6)
inches be maintained between
a handheld wireless phone and
a pacemaker to avoid potential
interference with the pacemaker.
These recommendations are
consistent with the independent
research by and recommendations
of Wireless Technology Research.
Persons with pacemakers:
• Should ALWAYS keep the
phone more than six (6) inches
from their pacemaker when the
phone is turned ON;
• Should not carry the phone in a
breast pocket;
• Should use the ear opposite
the pacemaker to minimize the
potential for interference;
• Should turn the phone
OFF immediately if there is
any reason to suspect that
interference is taking place.
23
For Your Safety
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 (or call the
customer service line to discuss
alternatives).
Other Medical Devices
If you use any other personal
medical device, consult the
manufacturer of your device
to determine if it is adequately
shielded from external RF energy.
Your physician may be able
to assist you in obtaining this
information.
Health Care Facilities
Turn your phone OFF in health
care facilities when any regulations
posted in these areas instruct you
to do so. Hospitals or health care
facilities may use equipment that
could be sensitive to external RF
energy.
24
Vehicles
RF signals may affect improperly
installed or inadequately
shielded electronic systems in
motor vehicles. 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
Turn your phone OFF in any
facility where posted notices so
require.
Aircraft
FCC regulations prohibit using
your phone while in the air. Switch
OFF your phone before boarding
an aircraft.
Blasting Areas
To avoid interfering with blasting
operations, turn your phone OFF
when in a “blasting area” or in
areas posted: “Turn off twoway radio”. Obey all signs and
instructions.
Potentially Explosive
Atmosphere
Turn your phone OFF 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.
Areas with a potentially explosive
atmosphere are often, but not
always marked clearly. Potential
areas may include: fueling areas
(such as gasoline stations); below
deck on boats; fuel or 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.
For Vehicles Equipped with
an Air Bag
An air bag inflates with great
force. DO NOT place objects,
including either installed or
portable wireless equipment, in
the area over the air bag or in
the air bag deployment area. If
in-vehicle wireless equipment is
improperly installed and the air
bag inflates, serious injury could
result.
FDA Consumer
Update
The U.S. Food and
Drug Administration’s
Center for Devices and
Radiological Health
Consumer Update on
Mobile Phones:
1. Do wireless phones pose a
health hazard?
The available scientific evidence
does not show that any health
problems are associated with
using wireless phones.
25
For Your Safety
There is no proof, however, that
wireless phones are absolutely
safe. Wireless phones emit low
levels of Radio Frequency (RF)
energy in the microwave range
while being used. They also emit
very low levels of RF when in idle
mode. Whereas high levels of RF
can produce health effects (by
heating tissue), exposure to low
level RF that does not produce
heating effects causes no known
adverse health effects. Many
studies of low level RF exposures
have not found any biological
effects. Some studies have
suggested that some biological
effects may occur, but such
findings have not been confirmed
by additional research. In some
cases, other researchers have had
difficulty in reproducing those
studies, or in determining the
reasons for inconsistent results.
26
2. What is the FDA’s role
concerning the safety of
wireless phones?
Under the law, the FDA does not
review the safety of radiationemitting consumer products
such as wireless phones before
they can be sold, as it does
with new drugs or medical
devices. However, the agency has
authority to take action if wireless
phones are shown to emit Radio
Frequency (RF) energy at a level
that is hazardous to the user.
In such a case, the FDA could
require the manufacturers of
wireless phones to notify users of
the health hazard and to repair,
replace, or recall the phones so
that the hazard no longer exists.
Although the existing scientific
data does not justify FDA
regulatory actions, the FDA has
urged the wireless phone industry
to take a number of steps,
including the following:
• Support needed research into
possible biological effects of RF
of the type emitted by wireless
phones;
• Design wireless phones in a way
that minimizes any RF exposure
to the user that is not necessary
for device function; and
• Cooperate in providing users of
wireless phones with the best
possible information on possible
effects of wireless phone use on
human health.
The FDA belongs to an
interagency working group of
the federal agencies that have
responsibility for different aspects
of RF safety to ensure coordinated
efforts at the federal level. The
following agencies belong to this
working group:
• National Institute for
Occupational Safety and Health
• Environmental Protection
Agency
• Occupational Safety and Health
Administration
• National Telecommunications
and Information Administration
The National Institutes of Health
participates in some interagency
working group activities, as well.
The FDA shares regulatory
responsibilities for wireless phones
with the Federal Communications
Commission (FCC). All phones
that are sold in the United States
must comply with FCC safety
guidelines that limit RF exposure.
The FCC relies on the FDA and
other health agencies for safety
questions about wireless phones.
The FCC also regulates the base
stations that the wireless phone
networks rely upon. While these
base stations operate at higher
power than do the wireless phones
themselves, the RF exposures
that people get from these base
stations are typically thousands of
times lower than those they can
get from wireless phones. Base
stations are thus not the subject
of the safety questions discussed
in this document.
27
For Your Safety
3. What kinds of phones
are the subject of this
update?
The term “wireless phone” refers
here to handheld wireless phones
with built-in antennas, often
called “cell”, “mobile”, or “PCS”
phones. These types of wireless
phones can expose the user to
measurable Radio Frequency
(RF) energy because of the short
distance between the phone and
the user’s head.
These RF exposures are limited
by FCC safety guidelines that were
developed with the advice of the
FDA and other federal health and
safety agencies. When the phone
is located at greater distances
from the user, the exposure to
RF is drastically lower because a
person’s RF exposure decreases
rapidly with increasing distance
from the source. The so-called
“cordless phones,” which have
a base unit connected to the
telephone wiring in a house,
typically operate at far lower
28
power levels, and thus produce
RF exposures far below the FCC
safety limits.
4. What are the results
of the research done
already?
The research done thus far has
produced conflicting results,
and many studies have suffered
from flaws in their research
methods. Animal experiments
investigating the effects of Radio
Frequency (RF) energy exposures
characteristic of wireless phones
have yielded conflicting results
that often cannot be repeated
in other laboratories. A few
animal studies, however, have
suggested that low levels of RF
could accelerate the development
of cancer in laboratory animals.
However, many of the studies
that showed increased tumor
development used animals that
had been genetically engineered
or treated with cancer-causing
chemicals so as to be predisposed to develop cancer in the
absence of RF exposure. Other
studies exposed the animals to
RF for up to 22 hours per day.
These conditions are not similar
to the conditions under which
people use wireless phones, so
we do not know with certainty
what the results of such studies
mean for human health. Three
large epidemiology studies have
been published since December
2000. Between them, the
studies investigated any possible
association between the use of
wireless phones and primary brain
cancer, glioma, meningioma,
or acoustic neuroma, tumors
of the brain or salivary gland,
leukemia, or other cancers. None
of the studies demonstrated the
existence of any harmful health
effects from wireless phone RF
exposures. However, none of the
studies can answer questions
about long-term exposures, since
the average period of phone use
in these studies was around three
years.
5. What research is needed
to decide whether RF
exposure from wireless
phones poses a health
risk?
A combination of laboratory
studies and epidemiological
studies of people actually using
wireless phones would provide
some of the data that are
needed. Lifetime animal exposure
studies could be completed in
a few years. However, very large
numbers of animals would be
needed to provide reliable proof
of a cancer promoting effect
if one exists. Epidemiological
studies can provide data that
is directly applicable to human
populations, but ten or more
years follow-up may be needed
to provide answers about some
health effects, such as cancer.
This is because the interval
between the time of exposure to
a cancer-causing agent and the
time tumors develop — if they do
— may be many, many years. The
29
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