Samsung Electronics Co SCHA790 Digital Quad-Band Phone User Manual SCH A790 REV03CC

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Document ID	375360
Application ID	qTM4yBxFZY6WGivQNlBuaw==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	23.1kB (288707 bits)
Date Submitted	2003-10-22 00:00:00
Date Available	2003-10-22 00:00:00
Creation Date	2003-11-21 15:29:27
Producing Software	Acrobat PDFWriter 4.05 for Windows NT
Document Lastmod	2003-11-21 15:30:10
Document Title	SCH-A790 REV03CC.PDF
Document Creator	Microsoft Excel - SCH-A790 REV03CC.pdm
Document Author:	JGKIM

World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
1. Phone Book
1. Find
By Name
By Entry
By Group
SIM Name
SIM Entry
2.New
3.Group
No Name
Family
Friend
Colleague
Business
4.My Name Card
5.Send V-Card
My Name Card
Phone Book
6.My Phone #
7.Memory Info
8.Delete All
Phone Phonebook
SIM Phonebook
All Phonebook
2.Recent Call
1.Received
2.Dialed
3.Missed
4.Delete All
Received
Dialed
Missed
All Calls
11/21/03
Page 1
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
5.Call Timers
Last Call Timer
Total Received
Total Dialed
Lifetime
Reset Timer
6.GSM Call Cost
Last Call Cost
Total Cost
Max Cost
Reset Cost
Set Max Cost
3.Message
1.New Text Msg
2.New Pix Msg
for CDMA only
Info pop up screen.. (Not available in GSM mode)
3.Voice Mail
4.Inbox
5.Outbox
6.Saved/Draft
7.Web Alert
8. Quick Text
Text Msg
Pix Msg
9. Message Settings
1.Text Msg Settings
Save In Outbox
Auto Save
Prompt
Not Save
Insert Signature
On/Off
11/21/03
Page 2
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
GSM Delivery Ack
On/Off
Auto Play
Auto Play/Manual
Direct View
On/Off
2.Pix Msg Settings
Save in outbox
Auto Save
Prompt
Not Save
Delivery Ack
On/Off
Retrieval Mode
Automatic Mode
Prompt Mode
3.Msg Aert
Volume/Vibrate
Ringer Type
Text Msg Alert
Pix Msg Alert
Voice Mail Alert
Web Alert
Reminder
Off/Once/Every 2 Min/Every 10 Min
4.Entry Mode
Alphabet
T9 Word
5.Callback #
6.Auto Delete
Auto Delete
Prompt
Not Delete
7.Voice Mail #
11/21/03
Page 3
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
8.GSM Settings
Setting1
Service Center
Default Destination
Default Type
Default Validity
Setting Name
Setting2
Service Center
Default Destination
Default Type
Default Validity
Setting Name
Reply Path
On/Off
Delivery Reports
On/Off
Sending Setting
Setting 1
Setting 2
Voice Mail #
10. Delete All
Old Inbox
New Inbox
Outbox
Draft
Voicemail
Web Alert
SIM Memory
All Messages
Phone Memory
SIM Memory
Phone&SIM
11. Memory Info
Phone Memory
SIM Memory
11/21/03
Page 4
World Phone Menu Tree V3.5
4.Get It Now
SAMSUNG CONFIDENTIAL
for CDMA only
1.Launch Get It Now
5.Mobile Web
1.Launch Web
2.Prompt
6. Multimedia
1. Camera
1.Take Pix
2.Camera Settings
Image Size
Image Quality
Flash
Self-Timer
Color
Shutter Sound
Auto Save
3.Memory Info
2. Media Gallery
1.Photo Gallery
Default Album
ID Photo
User Album01-04
2.Image Gallery
Preloaded
Set Wallpaper/Send Message
11/21/03
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World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
My Image
Set Wallpaper
Send Message
Delete
Mark&Delete
3.Sounds
Preloaded
Set Ringtone
Send Message
My Sounds
Set Ringtone
Send Message
Delete
Mark&Delete
4.Fun Frame
5.PIX Templates
6.Animelody Gallery
7.Memory Info
8. Delete All
Photo Gallery
Image Gallery
Melody Gallery
Animelody Gallery
All Gallery
7.Settings
2.Language
English, Spanish
11/21/03
Page 6
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
1.Phone Mode
CDMA / Int'L-GSM
3.Profile
Normal
1. Volume/Vibrate
2. Ringer Type
3. Key Beep
Volume
Tone Length
4. Alerts
Minute Beep
Service
Connect
Disconnect
Fade
Roaming
Privacy
Power On/Off
5. Power On/Off
On/Off
6. Roam Ringer
On/Off
7. Whisper
On/Off
Meeting
1. Volume/Vibrate
2. Ringer Type
3. Key Beep
Volume
Tone Length
4. Alerts
Minute Beep
Service
Connect
Disconnect
Fade
Roaming
11/21/03
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World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
Privacy
Power On/Off
5. Power On/Off
On/Off
6. Roam Ringer
On/Off
7. Whisper
On/Off
Drive
1. Volume/Vibrate
2. Ringer Type
3. Key Beep
Volume
Tone Length
4. Alerts
Minute Beep
Service
Connect
Disconnect
Fade
Roaming
Privacy
Power On/Off
5. Power On/Off
On/Off
6. Roam Ringer
On/Off
7. Whisper
On/Off
Manner -> Silent
1. Volume/Vibrate
2. Ringer Type
3. Key Beep
Volume
Tone Length
11/21/03
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World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
4. Alerts
Minute Beep
Service
Connect
Disconnect
Fade
Roaming
Privacy
Power On/Off
5. Power On/Off
On/Off
6. Roam Ringer
On/Off
7. Whisper
On/Off
Outdoor
1. Volume/Vibrate
2. Ringer Type
3. Key Beep
Volume
Tone Length
4. Alerts
Minute Beep
Service
Connect
Disconnect
Fade
Roaming
Privacy
Power On/Off
5. Power On/Off
On/Off
6. Roam Ringer
On/Off
7. Whisper
On/Off
11/21/03
Page 9
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
4.Display
1.Style
Basic/Dynamic
2.Animation
Power On
Main LCD
Sub LCD
Power Off
Main LCD
Sub LCD
Wallpaper
Main LCD
Sub LCD
3.Banner
4.Backlight
5 Seconds/ 10 Seconds / 15 Seconds / Folder Open/ Power Save
4.Backlight
> 1. LCD > 5 seconds/10 seconds/ 15 seconds/ Folder Open
2. Keypad > 5 seconds/10 seconds/ 15 seconds/ Folder Open
3. Power Save > On/ Off
5. Service LED
On/ Off
6. Auto Hyphen
On/Off
5.Security
1. Lock Phone
2. Change Lock
3. Emergency Number
4. Voice Privacy
On/Off
5. Restriction
Outgoing Call
Incoming Call
Phonebook
6. Delete Memory
Phone Memory
11/21/03
Page 10
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
SIM Memory
7. Reset Phone
8. PIN check
Enable / Disable
9. Change PIN
10.Change PIN2
11. FDN Mode
12. SIM Lock
6. Answer Options
Call Answer
Send Key / Folder Open / Any Key
Auto Answer
Off/After 5 Sec/ After 3 Sec/ After1 Sec
7.Call Options
Auto Retry
Off/After 10 Sec/ After 30 Sec/ After 60 Sec
Data
Auto Detect
Data Off/Data For Next Call/Data Until Powered Off
Baud Rate
Auto/19200/38400/57600/115200/230400
Airplane Mode
On/Off
8.Roam Option
Home Only/ Automatic
9.Shortcut List
10.Location
Location On/ 911 Only
11.Phone Info
11/21/03
Page 11
World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
12.GSM Services
1.Call Diverting
Divert Always
Busy
No Reply
Unreachable
Cancel All
2.Call Barring
All Outgoing
International Outgoing
All Incoming
In While Roaming
Out. Int. Home
Deactivate Call
Change Password
3.Network Selection
Automatic/Manual
4.Caller ID
Default/Hide Number/Send Number
5. Closed User Group
Index List
Outside Access
Default Group
Deactivate
6.Band Selection
GSM 900/1800
8.Planner
1.Calendar
2.To Do List
3.Alarm Clock
Alarm1
Alarm2
11/21/03
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World Phone Menu Tree V3.5
SAMSUNG CONFIDENTIAL
Alarm3
Alarm4
Auto Power
4.Time/Date
5.Memo Pad
6.World Time
7.Calculator
9.Voice Kit
for CDMA only
1.Voice Dial
Record
Review
Delete All
2.Voice Memo
Record
Review
Delete All
3.Voice Screen
On/Off
Inbox
Greeting
Call Sound
Wait Time
4.Voice Settings
Voice Kit Active
Adapt Digits
Reset Digits
11/21/03
Page 13
Usage guidelines —
all about performance and safety
Understanding signal strength
The quality of each call you make or receive, is dependent upon the signal
strength in your area. Your phone will inform you of the current signal strength
by displaying a number of bars next to the signal strength icon. The more bars
displayed, the stronger the signal. The signal strength indicator (
displays in the upper left corner of your display screen. The voice quality of
your phone will always be at its clearest when the antenna is fully raised. If
you’re inside a building, reception may be much better near a window.
Understanding the power save mode
If you are trying to use your phone in an area where the signal is too weak, the
Power Save feature will automatically activate to conserve battery power when
you have been unable to pick up a signal for 15 minutes. If your phone is on, it
will periodically recheck service availability, or you can do so yourself
manually by pressing any key. A message will be displayed on the screen any
time Power Save has been activated. When a signal is found, your phone
returns to standby mode.
Understanding how your phone
operates
Your phone is basically a radio transmitter and receiver. When it is turned on,
it receives and transmits radio frequency (RF) signals. When your phone is in
use, the system handling your call controls the power level. This power can
range from 0.006 watts to 0.355 watts in digital mode.
Specifications are subject to change
The information contained in this manual is believed to be correct at the time
of printing, however, Samsung reserves the right to change or modify any of the
specifications without notice or obligation to update existing units.
122
FCC RF Exposure information
The design of your Samsung Phone complies with updated NCRP standards
described below:
In 1991-92, the Institute of Electrical and Electronics Engineers (IEEE) and the
American National Standards Institute (ANSI) joined in updating ANSI’s 1982
standard for safety levels with respect to human exposure to RF signals. More
than 120 scientists, engineers and physicians from universities, government
health agencies and industries developed this updated standard after reviewing
the available body of research. In 1993, the Federal Communications
Commission (FCC) adopted this updated standard in a regulation. In August
1996, the FCC adopted hybrid standard consisting of the existing ANSI/IEEE
standard and the guidelines published by the National Council of Radiation
Protection and Measurements (NCRP).
Use only the supplied or an approved antenna. Unauthorized antennas,
modifications, or attachments could impair call quality, damage the phone, or
result in violation of FCC regulations
Do not use the phone with a damaged antenna. If a damaged antenna comes
into contact with the skin, a minor burn may result. Please contact your local
dealer for a replacement antenna. The design of the phone complies with these
updated standards. Of course, if you want to limit RF exposure even further
than the updated standard, you can choose to control the duration of your calls
and operate your phone in the most power-efficient manner.
•
•
•
•
You should not touch the antenna unnecessarily when using the phone.
Touching the antenna may affect the call quality and may cause the unit to
operate at higher power than it would need otherwise.
When using the handset, hold the handset just as you would hold any
other telephone, and keep the antenna pointed up and over your
shoulder.
Use of hands-free devices will further limit RF exposure.
123
Body-worn operation
SAR compliance for body-worn operating configurations is limited to the
specific belt-clip/ holster supplied or approved by Samsung, if available.
End-users must be informed of the body-worn operating requirements
for satisfying RF exposure compliance. The use of accessories that do
not satisfy these requirements may not comply with FCC RF exposure
compliance and should be avoided.
Vehicle mounted external antenna
(if available)
A minimum separation distance of 7.9 inches (20 cm) must be maintained
between a person and the vehicle mounted external antenna to satisfy FCC RF
exposure requirements.
Note: For more information about RF exposure, please visit the FCC website at
www.fcc.gov.
How to order accessories
Most Samsung accessories can be purchased by visiting our web site at
www.samsungtelecom.com or calling 1.800.SAMSUNG.
The accessories available for this phone include:
•
•
•
•
•
•
•
•
•
Travel adaptor
Desktop adaptor
Hands-free headset
Car adaptor
Standard, and Extended-life batteries
Hands-free car kit
Data cable
Leather case
Holster
The use of any other power accessory will invalidate any approval or warranty
applying to the phone, and may be dangerous.
124
When you disconnect the power cord of any accessory, grasp and pull the
connector, not the cord.
IT IS EXTREMELY IMPORTANT THAT ONLY GENUINE SAMSUNG
AUTHORIZED ACCESSORIES BE UTILIZED WITH YOUR SAMSUNG
PHONE. THIS IS BECAUSE ACCESSORIES MIGHT APPEAR TO BE A
PERFECT MATCH, AND LABELED SUITABLE FOR YOUR SAMSUNG
PHONE, BUT THEY CAN CHARGE AT DIFFERENT CURRENT RATES. THE
CURRENT PROVIDED THROUGH THE ACCESSORY MAY NOT MATCH
THE CURRENT THAT IS REQUIRED BY YOUR SAMSUNG PHONE AND
THE RESULT OF USING AN UNAUTHORIZED ACCESSORY MAY BE A
BATTERY OR PHONE MELT DOWN. YOUR WARRANTY OF COURSE,
WOULD BE NULL AND VOID.
Operating a motor vehicle
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY LEAD TO SERIOUS
PERSONAL INJURY AND PROPERTY DAMAGE.
You should never use a hand-held phone while operating a motor vehicle. It
may divert your attention away from driving and may be illegal in some cities,
states, and jurisdictions. You should park your vehicle legally before using your
hand-held phone. Remember, safety comes first.
•
Your hand-held phone should be stored in a secure place so that, in the
event of a sudden stop or collision with another vehicle, the phone will
not damage property or injure anyone. For example, airbags inflate very
quickly and with great force. Serious injury may result if you have placed
your phone in the area of deployment of an air bag and the bag inflates.
Park your vehicle legally before using your hand-held phone.
•
Call to report serious emergencies. No charges from your carrier.
•
Use your phone to help others in emergencies.
125
•
Call roadside assistance or a secret non-wireless number when
necessary.
Following safety guidelines
To operate your phone safely and efficiently, always follow any special
regulations in a given area. Turn your phone off in areas where use is
forbidden or when it may cause interference or danger. All wireless phones
may be subject to radio interference, which may affect their performance.
Turning off your phone in dangerous
areas
To avoid interfering with blasting operations, turn off your phone when in a
blasting area or in other areas with signs indicating that two-way radios should
be turned off. Construction crews often use remote-control RF devices to set off
explosives.
Turn off your phone when you’re in any area that has a potentially explosive
atmosphere. Although it’s rare, your phone or its accessories could generate
sparks. Sparks could cause an explosion or a fire resulting in bodily injury or
even death. These areas are often, but not always, clearly marked. They
include:
•
Fueling areas such as gas stations
•
Below deck on boats
•
Fuel or chemical transfer or storage facilities
•
Areas where the air contains chemicals or particles such as grain, dust or
metal powders
•
Any other area where you would normally be advised to turn off your
vehicle engine
126
Restricting children’s access to your
phone
Your Samsung phone is not a toy. Children should not be allowed to play with it
because they could hurt themselves and others, damage the phone or make
calls that increase your phone bill.
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.
Maintaining your phone’s peak
performance
To operate your phone properly — that is, to maintain safe and satisfactory
service — you should follow these rules:
•
For best reception, extend the antenna fully.
•
Hold the phone with the antenna up and over your shoulder.
•
Do not hold, bend, or twist the phone antenna at any time.
•
Close the phone antenna when not on a call.
•
Do not use the phone with a damaged antenna.
•
Speak directly into the microphone.
•
Avoid exposing your phone and accessories to rain or liquid. If your
phone does get wet, immediately turn the power off and remove the
battery.
•
Only Samsung authorized personnel should service your phone and
accessories.
127
Using your phone near other electronic
devices
Most modern electronic equipment is shielded from radio frequency (RF)
signals. However, some electronic equipment may not be shielded, or
adequately shielded, from RF signals. RF signals from wireless telephones may
affect such equipment.
RF signals from your phone may affect systems in your vehicle, including
improperly installed or inadequately shielded electronic operating and
entertainment systems in motor vehicles (such as electronic ignition systems,
electronic speed control systems, electronic anti-skid or anti-lock braking
systems, and air bag systems). You should check with the manufacturer of your
vehicle (and the manufacturers of any equipment added to your vehicle) to
determine whether its systems are adequately shielded from external RF signals
and to determine appropriate safety precautions.
You must 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 and the appropriate safety precautions to take with
such devices. For example, safety instructions for pacemakers may include
minimum distances that the phone should be kept from the pacemaker, areas
where the phone should not be kept (for example, the breast pocket), use of
the ear opposite the pacemaker, and other such safety instructions. The advice
from the manufacturers may change from time to time. If at any time you
suspect any such interference, turn off your phone immediately.
Turn off the phone in health care facilities and request permission before using
the phone near medical equipment.
Storing your phone
You must not store or carry your phone, its parts, or accessories in the same
compartment or other area where there flammable liquids, gases, or explosive
or flammable materials.
128
Your phone as a network device
Your telephone requires a service provider in order to send and receive calls.
Your phone is only one part of a system or “network” of devices, that makes it
possible to send and receive calls, text messages, voice message, access the
Internet using the MiniBrowser, and to take advantage of all of the other
services and features provided to you and your phone.
Your phone will always try your call using your home system, but if this is
unavailable, then the phone will use the preferred roaming system.
If you cannot roam, your call will not be connected, and in some service areas,
an operator may ask you how you would like to pay for the call.
To make all of the features available to you, your phone is designed by
Samsung and your service provider to allow your service provider to send (at
any time) a variety or information and messages to your phone. You may think
of this as an over the air service to your phone. During an over-the-air
programming session, your phone may display the following messages:
•
•
•
“Programming in progress...” - this message means the phone is
downloading data. Do not turn your phone off while this is occurring.
See the CAUTION: below.
“Programming successful!...” - if this message displays after a series
of other messages, then it means that your phone has been successfully
reprogrammed. You can now continue to use your phone as you
normally do.
“Programming unsuccessful!” - if this message appears contact your
service provider.
CAUTION: If you turn off your phone during a programming session, your
phone (or some features) may not work properly in the network. If this
happens don’t worry, contact your service provider for help in correcting the
problem.
129
Acknowledging special
precautions and the FCC and
Industry Canada Notice
Information to user
This equipment has been tested and found to comply with the limits of 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 to radio 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 / Relocate the receiving antenna.
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.
CAUTION: Changes or modifications not expressly approved by the
manufacturer responsible for compliance could void the user’s authority to
operate the equipment.
130
Cautions
Any changes or modifications to your phone not expressly approved in this
document could void your warranty for this equipment and void your authority
to operate this equipment.
Only used approved batteries, antennas, and adaptors. The use of any
unauthorized accessories may be dangerous and will invalidate the phone
warranty if said accessories cause damage or a defect to the phone.
Although your phone is quite sturdy, it is a complex piece of hardware and can
be broken. Use common-sense guidelines to avoid dropping, hitting, bending
or sitting on it.
FCC compliance information
This device complies with part 15 of the FCC Rules. Operation and is subject to
the condition that this device does not cause harmful interference.
Owner's record
The model number, regulatory number and serial number are located on a
nameplate inside the battery compartment. Record the serial number in the
space provided below. This will be helpful if you need to contact us about your
phone in the future.
Model:
Serial No.:
131
FDA consumer update
Copied verbatim from: The U.S. Food and Drug Administration’s
Center for Devices and Radiological Health Consumer Update on
Mobile Phones
FDA has been receiving inquiries about the safety of mobile phones, including
cellular phones and PCS phones. The following summarizes what is known and what remains unknown - about whether these products can pose a hazard
to health, and what can be done to minimize any potential risk. This
information may be used to respond to questions.
Why the concern?
Mobile phones emit low levels of radio frequency energy (i.e., radio frequency
radiation) in the microwave range while being used. They also emit very low
levels of radio frequency energy (RF), considered non-significant, when in the
standby mode. It is well known that high levels of RF can produce biological
damage through heating effects (this is how your microwave oven is able to
cook food). However, it is not known whether, to what extent, or through what
mechanism, lower levels of RF might cause adverse health effects as well.
Although some research has been done to address these questions, no clear
picture of the biological effects of this type of radiation has emerged to date.
Thus, the available science does not allow us to conclude that mobile phones
are absolutely safe, or that they are unsafe. However, the available scientific
evidence does not demonstrate any adverse health effects associated with the
use of mobile phones.
What kinds of phones are in question?
Questions have been raised about hand-held mobile phones, the kind that have
a built-in antenna that is positioned close to the user’s head during normal
telephone conversation. These types of mobile phones are of concern because
of the short distance between the phone’s antenna - the primary source of the
RF - and the person’s head. The exposure to RF from mobile phones in which
134
the antenna is located at greater distances from the user (on the outside of a
car, for example) is drastically lower than that from hand-held phones,
because a person’s RF exposure decreases rapidly with distance from the
source. The safety of so-called “cordless phones,” which have a base unit
connected to the telephone wiring in a house and which operate at far lower
power levels and frequencies, has not been questioned.
How much evidence is there that hand-held mobile phones might be harmful?
Briefly, there is not enough evidence to know for sure, either way; however,
research efforts are on-going. The existing scientific evidence is conflicting and
many of the studies that have been done to date have suffered from flaws in
their research methods. Animal experiments investigating the effects of RF
exposures characteristic of mobile phones have yielded conflicting results. A
few animal studies, however, have suggested that low levels of RF could
accelerate the development of cancer in laboratory animals. In one study, mice
genetically altered to be predisposed to developing one type of cancer
developed more than twice as many such cancers when they were exposed to
RF energy compared to controls. There is much uncertainty among scientists
about whether results obtained from animal studies apply to the use of mobile
phones. First, it is uncertain how to apply the results obtained in rats and mice
to humans. Second, many of the studies that showed increased tumor
development used animals that had already been treated with cancer-causing
chemicals, and other studies exposed the animals to the RF virtually
continuously - up to 22 hours per day.
135
For the past five years in the United States, the mobile phone industry has
supported research into the safety of mobile phones. This research has
resulted in two findings in particular that merit additional study:
1.
In a hospital-based, case-control study, researchers looked for an
association between mobile phone use and either glioma (a type of brain
cancer) or acoustic neuroma (a benign tumor of the nerve sheath). No
statistically significant association was found between mobile phone use
and acoustic neuroma. There was also no association between mobile
phone use and gliomas when all types of types of gliomas were
considered together. It should be noted that the average length of mobile
phone exposure in this study was less than three years.
When 20 types of gliomas were considered separately, however, an
association was found between mobile phone use and one rare type of
glioma, neuroepithelliomatous tumors. It is possible with multiple
comparisons of the same sample that this association occurred by
chance. Moreover, the risk did not increase with how often the mobile
phone was used, or the length of the calls. In fact, the risk actually
decreased with cumulative hours of mobile phone use. Most cancer
causing agents increase risk with increased exposure. An ongoing study
of brain cancers by the National Cancer Institute is expected to bear on
the accuracy and repeatability of these results.1
2.
Researchers conducted a large battery of tests to assess the effects of
exposure to mobile phone RF on genetic material. These included tests
for several kinds of abnormalities, including mutations, chromosomal
aberrations, DNA strand breaks, and structural changes in the genetic
material of blood cells called lymphocytes. None of the tests showed any
effect of the RF except for the micronucleus assay, which detects phone
1.Muscat et al. Epidemiological Study of Cellular Telephone Use and Malignant Brain
Tumors. In: State of the Science Symposium; 1999 June 20; Long Beach, California.
136
radiation, but only after 24 hours of exposure. It is possible that exposing
the test cells to radiation for this long resulted in heating. Since this assay
is known to be sensitive to heating, heat alone could have caused the
abnormalities to occur. The data already in the literature on the response
of the micronucleus assay to RF are conflicting. Thus, follow-up research
is necessary.1
Two other studies of interest have been reported recently in the
literature:
1.
Two groups of 18 people were exposed to simulated mobile phone
signals under laboratory conditions while they performed cognitive
function tests. There were no changes in the subjects’ ability to recall
words, numbers, or pictures, or in their spatial memory, but they were
able to make choices more quickly in one visual test when they were
exposed to simulated mobile phone signals. This was the only change
noted among more than 20 variables compared.2
2.
In a study of 209 brain tumor cases and 425 matched controls, there was
no increased risk of brain tumors associated with mobile phone use.
When tumors did exist in certain locations, however, they were more
likely to be on the side of the head where the mobile phone was used.
Because this occurred in only a small number of cases, the increased
likelihood was too small to be statistically significant.3
In summary, we do not have enough information at this point to assure
the public that there are, or are not, any low incident health problems
1.Tice et al. Tests of mobile phone signals for activity in genotoxicity and other laboratory assys. In: Annual Meeting of the Environmental Mutagen Society; March 29, 1999,
Washington, D.C.: and personal communication, unpublished results.
2.W, Iwi, G, Davies-Smith, A, Wesnes, K, Butler, S, Lim, E, and Varey, A. Effect of a 915MHz simulated mobile phone signal on cognative function in man. Int. J. Radiat. Biol.,
April 8, 1999.
3.Hardell, L, Nasman, A, Pahlson, A, Hallquist, A and Mild, KH. Use of cellular telephones and the risk for brain tumors: a case-control study, Int. J. Oncol., 15: 113-116,
1999.
137
associated with use of mobile phones. FDA continues to work with all
parties, including other federal agencies and industry, to assure that
research is undertaken to provide the necessary answers to the
outstanding questions about the safety of mobile phones.
What is known about cases of human cancer that have been reported
in users of hand-held mobile phones?
Some people who have used mobile phones have been diagnosed with brain
cancer. But it is important to understand that this type of cancer also occurs
among people who have not used mobile phones. In fact, brain cancer occurs
in the U.S. population at a rate of about 6 new cases per 100,000 people each
year. At that rate, assuming 80 million users of mobile phones (a number
increasing at a rate of about 1 million per month), about 4800 cases of brain
cancer would be expected each year among those 80 million people, whether
or not they used their phones. Thus it is not possible to tell whether any
individual’s cancer arose because of the phone, or whether it would have
happened anyway. A key question is whether the risk of getting a particular
form of cancer is greater among people who use mobile phones then among
the rest of the population. One way to answer the question is to compare the
usage of mobile phones among people with brain cancer with the use of
mobile phones among appropriately matched people without brain cancer.
This is called a case-control study. The current case-control study of brain
cancers by the National Cancer Institute, as well as the follow-up research to be
sponsored by industry, will begin to generate this type of information.
What is FDA’s role concerning the safety of mobile phones?
Under the law, FDA does not review the safety of radiation-emitting consumer
products such as mobile phones before marketing, as it does with new drugs
or medical devices. However, the agency has authority to take action if mobile
phones are shown to emit radiation at a level that is hazardous to the user. In
such a case, FDA could require the manufacturers of mobile phones to notify
138
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 do not justify FDA regulatory actions at this
time, FDA has urged the mobile phone industry to take a number of steps to
assure public safety. The agency has recommended that the industry.
•
•
•
support needed research into possible biological effects of RF of the type
emitted by mobile phones.
design mobile phones in a way that minimizes any RF exposure to the
user that is not necessary for device function; and
cooperate in providing mobile phone users with the best possible
information on what is known about possible effects of mobile phone use
on human health.
At the same time, FDA belongs to an interagency working group of the federal
agencies that have responsibility for different aspects of mobile phone safety to
ensure a coordinated effort at the federal level. These agencies are:
•
•
•
•
•
National Institute for Occupational Safety and Health
Environmental Protection Agency
Federal Communications Commission
Occupational Health and Safety Administration
National Telecommunications and Information Administration
The National Institutes of Health also participates in this group.
In the absence of conclusive information about any possible risk,
what can concerned individuals do?
If there is a risk from these products - and at this point we do not know that
there is - it is probably very small. But if people are concerned about avoiding
even potential risks, there are simple steps they can take to do so. For example,
time is a key factor in how much exposure a person receives. Those persons
who spend long periods of time on their hand-held mobile phones could
consider holding lengthy conversations on conventional phones and reserving
139
the hand-held models for shorter conversations or for situations when other
types of phones are not available.
People who must conduct extended conversations in their cars every day could
switch to a type of mobile phone that places more distance between their
bodies and the source of the RF, since the exposure level drops off dramatically
with distance. For example, they could switch to:
•
•
•
a mobile phone in which the antenna is located outside the vehicle,
a hand-held phone with a built-in antenna connected to a different
antenna mounted on the outside of the car or built into a separate
package, or
a headset with a remote antenna to a mobile phone carried at the waist.
Again, the scientific data do not demonstrate that mobile phones are harmful.
But if people are concerned about the radio frequency energy from these
products, taking the simple precautions outlined above can reduce any
possible risk.Where can I find additional information?
For additional information, see the following web sites:
Federal Communications Commission (FCC) RF Safety Program (select
“Information on Human Exposure to RF Fields from Cellular and PCS Radio
Transmitters”): http://www.fcc/gov/oet/rfsafety
World Health Organization (WHO) International Commission on NonIonizing Radiation Protection (select Qs & As): http://www.who.int/emf
United Kingdom, National Radiological Protection Board:
http://www.nrpb.org.uk
Cellular Telecommunications Industry Association (CTIA):
http://www.wow-com.com
U.S. Food and Drug Administration (FDA) Center for Devices and
Radiological Health: http://www.fda.gov/cdrh/consumer/
140

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