Mitsubishi T255 User Manual
Table of Contents
Using This Guide ..........2
Key Symbols ................... 2
Phone Overview ........... 3
Key Functions ..........4, 5
Display Icons ............ 6, 7
Getting Started ............8
Charging Battery ............ 8
Attaching Battery ........... 9
Basic Phone
Operations ............. 11
Turning on the Phone .. 11
Making a Call ............. .. 11
Answering a Call .......... 12
Unanswered C all s ......... 12
Voice Mail .................... 13
Text Messages (SMS) .... 14
Menu Help ................... 14
Safety Information .... 15
Care and Maintenance . 23
Voice Mode Features .24
Dialing Stored Numbers 24
Speed Dialing ............... 25
Emergency C all s ........... 25
Sounds On/Off ............. 26
Mute/Unmute .............. 26
Adjusting Vo lume ...... .. 26
Sending DTMF Tones .... 27
Pause Feature ............... 27
Memory Link Feature ... 28
Calling Card Calling ...... 28
Conversation Mode ...... 29
Menu System .............31
Access to the Menus .... 31
Menu Map ................... 32
Entering Text ................ 34
®
Quick Type
T9
Text Input ................. 36
Phonebook ...... ....... ...... 38
View ........................ 38
New Entries ............. 38
Status ...................... 39
Messages ..................... 40
Voice Mail ...... .... ... ... 40
Message Inbox ...... ... 40
Status ........ ... ... ... .... ... ... 41
Call Lists ................... 41
Talk Times ................ 41
Own Number ........... 41
IP Address ................ 41
Preferences .................. 42
Sounds On/O ff ............. 52
Key Guard ................. ... 52
Systems ..... ............. ...... 52
Data Mode Features ..54
Connecting to Data
Mode ............ ............. 54
Making a Voice Call ..... 57
Tethered Mode ......... 58
Appendix .................... 71
Accessories ...... ....... ...... 71
Glossary ....................... 72
Troubleshoo t in g . .......... 74
Index .......................... 76
1
Using This Guide
The MobileAccess™ T255 phone combines two separate devices –
a wireless voice phone and a wireless data terminal.
The voice phone can be used where cellular service is available. It works
over 800 MHz digital/analog and 1900 MHz digital networks.
To access wireless data service, you must be in an area where wireless IP
(CDPD) service is provided. Your network service provider must set up
and register a unique IP and email address for you.
As you use the phone, keep in mind these two points:
• The phone cannot operate simultaneously as a voice phone and a data
terminal. Pressing the MODE key allows you to switch between Voice
Mode and Data Mode. In some instances, the phone will
automatically switch modes.
• Some of the phone’s keys have different functions depending on
whether you’re in Voice Mode or Data Mode. See Key Functions,
pages 4-5.
Key Symbols
To help you quickly understand this manual, symbols on the keys and
expressions in the display are explained below.
Right arrow on Express Key
Left arrow on Express Key
Up arrow on Express Key
Down arrow on Express Key
SEND key
END key
Softkeys Softkeys control the action or function displayed immediately
Express
above. Press the softkey to perform that action. For example,
Store softkey means press the softkey under the word Store
to store the displayed number or text. Softkey actions/labels
change with each new screen.
The Express Key is the navigation key. Use and on the
Express Key to scroll to the d esi red item in the men u and s ele ct
Key
by pressing
means scroll to the menu item
pressing
Another way to navigate menus is to press the number
associated with a menu item to go directly to the next screen
associated with that item.
OK left softkey. For example, select View Options
View Options and select by
OK left softkey.
2
MobileAccess™ T2 55 Phone Overview
Menu key
Press to go to
Earpiece
Graphic display
Telephone numbers,
menus, messages, etc.
are displayed here.
Left softkey
Performs action
displayed on
screen directly
above.
Mode key
Press and hold
to turn the
phone on or off.
Press to toggle
between Voice &
Data Mode.
SEND key
Dials displayed
number or name
and answers calls.
Alphanumeric keys
Enter text and
telephone numbers.
Also used for menu
navigation and speed
dial access.
AC Rapid Charging
Adapter socket
Data cable
connector
for phone and
services. This is
NOT the browser
menu. Press and
Right softkey
Performs action
displayed on
screen directly
headset here.
Turns off alerts.
Express Key
Navigation key.
Press and hold left
arrow to dial voice
mailbox. Press and
hold right arrow to
read text messages.
Press arrows to
between options.
END/Back key
Press and hold to
end a call or go back
to previous display.
Microphone
main menu
data-related
hold to get
menu help.
above.
Headset
socket
Connect
Clear key
Erases
characters.
move cursor
3
Key Functions - Voice Mode
Key Standby Voice Mode Active Voice Mode
Left: Call Lists
Right: Phonebook
Press/hold: Turn on Key Guard
Press: Switch to Data Mode
Press/hold: Power OFF
Press: Recall last 10 dialed
numbers
Main menu for phone
services
Press/hold: Help/info about
displayed item
Press: Go back 1 screen
Press/hold: Go to standby
screen
Press/hold le ft : voice mailbox
Press/hold right: SMS
messages
Press up/down: Ringer
volume control
Press: Clear previous character
Press/hold: Clear entire entry
Press: In text entry, enter let-
-
ters, numbers or symbols
In text entry, press 1 for
punctuation mark
Press/hold: Speed dial Phonebook entry
Press/hold 9: Emergency Call if
set up
Press: Enter * or change case in
text entry
Press: Enter 0
Press/hold: Speed dial
operator
Press: Enter # or, in text entry,
a space
Left: Mute
Right: Options
Press/hold: Turn on Key Guard
Not active
Press: Dial number displayed/
answer incoming call
Press/hold: Credit card call (if
activated)
Main menu for phone
services
Press/hold: Help/info about
displayed item
Press: Go back 1 screen
Press/hold: Terminate call
Press up/down: Volume
control - earpiece
Press: Clear previous character
Press/hold: Clear entire entry
Press: Enter numbers
(Can be used to enter & store a
number, but tones will sound.
To store a number silently, use
scratchpad option)
Press: Enter *
Press: Enter 0
Press/hold: Speed dial
operator
Press: Enter #
4
Key Functions - Data Mode
Key Standby Data Mode Active Data Mode
Softkey action Action indicated on softkey
Press: Switch to Voice Mode
Press/hold: Powe r OFF
Not active Not active
displayed above
Press: Switch to Voice Mode
Press/hold: Powe r O F F
Main menu for phone
services (NOT browser Home
Page menu).
Press/hold: Help/info about
displayed item
Press: Go to standby screen Press: Go back 1 scree n
Press up/down: Scroll to
menu selection
Not active Press: Clear previous character
Press: Move directly to menu
-
item next screen
In text entry, enter letters,
numbers or symbols
In text entry, press 1 for
punctuation mark
Press/hold: Go to My Favorites
Press/hold 9: Emergency Call
Press: Enter * Press: To change case in text
Press: Enter 0 Press:
Not active Press: For space
Main menu for phone
services
Press/hold: Help/info about
displayed item
Press/hold: Return to Home
Page
Press up/down: Scroll to
menu selection
Press left/rig ht: Move to next
character or word in text entry
Press/hold: Clear entire entry
Press: Move directly to menu
item next screen
In text entry, enter letters,
numbers or symbols
In text entry, press 1 for
punctuation mark
Press/hold: Go to My Fa vorites
Press/hold 9: Emergency Call
entry
Go to 10th menu
selection.
entry, enter 0. In T9
Type, select next word
Press/hold:
My Favorites entry
In text or numeric
To register a
®
Quick
5
Display Icons – Voice Mode and General
The display screen can display up to eight lines of characters plus one row
of special display indicators or icons. The display screen in standby Voice
Mode appears like this:
Voice Mode Icons
Voice Mail Displays when a PCS voice mail message
Text Message Displays when a PCS text message has
Digital Indicates digital voice network available;
Off Hook Conversation
Call Lists Dialed, received and missed calls listed
Phonebook View local names and numbers
has been received and stored
been received and stored
if not displayed, phone is operating on
analog network
General Icons (Voice and Data)
Signal Strength Six levels indicate the strength of the re-
All Alerts Off All audio alerts are muted
Some Alerts Off Ringer and/or message alert muted.
Vibrate Alert Vibrate alert on (available only if vibrate
Battery Level Three levels indicate the charge level (low,
Scroll Arrows More menu information up/down in menu
ceived signal–signal indicator for network
on which phone is currently registered
Example: if ring volume=0, this icon
appears
battery inst al le d)
medium, high)
screen; in some cases, move left/right
6
Display Icons – Data Mode
Your service provider supplies the Home Page screen and all Data Mode
content. Therefore, the Home Page screen appearance will vary depending on what your service provider offers. Here is an example of a Home
Page display screen:
Data Mode Icons
Secure Secure mode
Message Alert Data alert received
CDPD Registered Packet data network available – registered
CDPD Not
Registered
Packet data network not available –
not registered
7
Getting Started
Charging the Battery
The battery must be fully charged before using the phone for the first
time. To reach full capacity of NiMH battery, charge and discharge the
new battery three times before use. To charge the battery, follow
procedure below. To fully discharge the battery, leave the phone on until
it shuts itself off.
1. Make sure the battery is properly installed on your phone.
2. Connect the AC Adapter to the socket on the side of the phone.
Connect the other end to a standard wall outlet. The battery level
indicator flashes during charging.
3. Disconnect the AC Adapter when the Battery Full message displays.
Recharging the Battery
When the battery needs to be recharged, three short tones sound. The
Low Battery icon and message flash on the display.
Connect the AC Adapter to the socket on the side of the
1
phone.
Connect the AC Adapter to a standard wall outlet. The
2
battery begins charging when the AC adapter is connected
to the phone.
✱
If the phone is left on despite a low battery alarm, the phone automatically shuts itself off to
protect the battery from over-discharging.
8
Attaching the Battery
Insert the bottom of the battery into the recess on the back
1
of the phone.
Push inward until the locking catch snaps securely into
2
place.
Removing the Battery
Turn the phone off.
1
Push up the locking catch and remove the batter y.
2
Charging Times
Approximate battery recharging times using the AC Rapid Charging Adapter:
Battery Type Charging time
880 mAh NiMH Standard 120 minutes
880 mAh NiMH Vibrating 120 minutes
1500 mAh NiMH Extended 200 minutes
• It is normal for batteries to become warm during charging.
• The phone can be used while charging but it will increase the
charging time.
• Replace the battery when it will not hold a charge, or when operating time decreases dramatically.
• The NiMH battery performance varies with the condition and history
of the battery.
• Use only the Mitsubishi chargers specified for this battery. Using
other chargers or batteries may cause damage.
• Do not leave NiMH batteries connected to a charger longer than necessary; overcharging will shorten battery life.
9
Battery Use Times
Standard Battery
Voice Digital Voice Analog CDPD
Standby 120 hr Standby 10 hr Standby 120 hr
Talk 120 min Talk 70 min Data Mode 7 hr
Extended Life and Vibrating Battery
Voice Digital Voice Analog CDPD
Standby 200 hr Standby 17 hr Standby 200 hr
Talk 200 min Talk 120 min Data Mode 12 hr
Battery Safety Tips
• Do not leave the phone in a closed car during hot summer or cold
winter conditions. The phone may temporarily not work with a hot
or cold battery.
• The recharging temperature range is 32-104° F (0-40° C).
If you attempt to recharge when the battery is above or below this
range, acid leakage or overheating may result.
• Batteries may explode if discarded into a fire or heated.
• Do not use or leave the battery near a heat source such as a stove,
oven, heater or fire (170° F = 76° C or higher).
• The battery is not waterproof. Do not immerse it in liquid or allow it
to get wet.
• Avoid contact of the battery terminals with metal objects (su ch as
keys, paper clips, coins, chains) or excessive static electricity which
may short circuit the battery.
• If the battery terminal s become soiled, clean them with a soft cloth.
• Do not try to disassemble or modify the battery as injury or burns
may result.
• Do not drop or subject the batteries to strong physical shocks.
• Keep batteries out of the reach of children.
10
Basic Phone Operations
Turning On the Phone
1
Press and hold key. A beep tone sounds.
If the phone is locked, -Auto L ock- will display. Enter the
2
4-digit code and press OK left softkey.
✱
See page48 for more details on Auto Lock.
Standby Screen — Voice Mode
The screen displays network and/or service provider, signal strength and
battery level indicators, and Call Lists and Phonebook softkey shortcuts.
To quickly return to the standby screen at any time while in Voice Mode
(except during conversation), press and hold the key.
Press softkey to go to Call Lists.
Press softkey to go to the Phonebook.
Press or on the Express Key to go to volume control.
Making a Call
Key in the telephone number you wish to call.
1
Correct any mistakes by pressing . Press and hold this
key to clear the entire entry.
2
Press .
The off hook indicator displays and you’ll hear a network tone. As the
call connects; the dialed number (if stored), time and date display.
To store the dialed number in the Phonebook, press Store left softkey
before pre ssing the Send key to connect the call.
To cancel the call before it connects, press either Cancel left softkey or
key.
11
Muting
While talking, to mute the microphone, press Mute left softkey. To turn
the microphone back on, press Talk left soft key .
Conversation Options
When talking, press Options right softkey to Send DTMF tones, use the
Scratchpad, Store the number, or view your Own Number. See Conversation mode on page 29 for details.
Answering a Call
The ringer alerts you to an incoming call and the caller’s name and
number are displayed if they are stored in your Phonebook. Press any key
to mute ring tone.
To answer the call,
Press Answer left softkey or .
✱
If Any Key Answer is enabled in Preferences - Call Setup menu, you can answer by pressing any
key except the right softkey, End/Back key and Mode key.
Ending a Call
While in Conversation Mode or in the Main Menus, press and hold
to end a call. In all other cases, press to end a call. The
standby screen will display.
Turning Off the Phone
Press and hold .
A turn-off tone will sound and power OFF will briefly display.
Unanswered Calls
If you miss a call, the phone saves the number in an unanswered call log
and alerts you by displaying Missed Call. See page 24.
12
Voice Mail
When you have new voice mail, a tone alerts you. The screen displays
and indicates the number of new messages waiting in your voice mailbox.
To access your Voice Mailbox,
Press and hold or press and select 2 Messages,
1
1 Voice Mail. If you are using more than one mailbox, a list
will display.
2
Press or to select a mailbox, or press the corresponding
number displayed in the menu.
3
Press either Call left softkey or to access the selected
mailbox.
Setting up a Voice Mailbox
Up to three separate Voice Mailboxes can be stored.
To add a Voice Mailbox,
Press and select 2 Messages, 1 Voice Mail, 2 Setu p,
1
then press Add right softkey.
Enter your 8-digit Security Code. Default code is 00000000.
2
Enter the Access Number, PIN number and name for the
3
mailbox and press OK left softkey.
4
Press to access the new mailbox.
Edit Voice Mailbox
To edit the name, number, or PIN, or delete an existing Voice Mailbox,
Press and select 2 Messages, 1 Voice Mail, 2 Setu p.
1
Select the mailbox you wish to change and press Edit
2
softkey.
Enter your 8-digit Security Code. Default code is 00000000.
3
Select Edit Name, Edit Number, Edit PIN, or Delete, then
4
press OK softkey.
To enter text, press right softkey to select input mode. The
5
most recently used mode is displayed over the right softkey.
To change mode, cycle through the right softkey until
desired text entry mode is displayed. When finished, press
OK softkey.
✱
See Entering Text, page34.
13
Text Messages (SMS)
Text messages are sent via an SMS (Short Message Service) message
center provided by your service provider. When you receive a text
message, a tone alerts you. The screen displays and indicates the
number of unread messages. You can receive up to 30 text messages
with up to 245 characters each. Consult your service provider for details.
To access your Text Messages,
Press and hold or press and select 2 Messages ,
1
2 Msg Inbox.
At the text message list screen, to select a message, either
2
press the number key associated with the message or press
or to scroll to desired message. Unread messages are
marked with *, and urgent unread messages marked with .
If you scroll up or down, press View left softkey and the
3
selected text message will display.
To delete a Text Message ,
Press Delete right softkey.
1
At the next screen, press Yes. The message will be deleted
2
and the remaining messages will display.
To view new Text Messages immediately,
Press View left softkey or press and hold .
To skip Text Messages,
Press Skip right softkey or to view later.
Menu Help
To view a help message describing the meaning of a particular menu
option, press and hold while you are at the desired menu option.
For example,
Press , select 3 Status, and scroll to 4 Accumulated
1
Talk Time.
Press and hold . A help message describing Accumulated
2
Talk Time displays.
To return to the menu, press OK softkey or .
3
14
Safety Information
EXPOSURE TO RADIO FREQUENCY SIGNALS
Your wireless handheld portable telephone is a low power radio transmitter and receiver. When it is ON, it receives and also sends out radio
frequency (RF) signals.
In August 1996, the Federal Communications Commissions (FCC) adopted RF exposure guidelines with safety levels for hand-held wireless
phones. These guidelines are consistent with the safety standards previously set by both U.S. and international standards bodies:
*ANSI C95.1 (1992)
*NCRP Report 86 (1986)
*ICNIRP (1996)
*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 re viewed the avai lable body of researc h to develop t he ANSI
Standard (C95.1).
The design of your phone complies with the FCC guidelines (and those
standards).
Your phone has been tested and meets the limits for radio frequency (RF)
exposure set by the FCC for normal handheld use next to the ear or worn
on the body using a Mitsubishi brand belt clip accessory specified for this
phone, and used as intended. Operation of the phone in other situations
such as in shirt pockets or non-Mitsubishi brand belt clips or holsters, or
operation with the back of the phone closer than 1 3 mm (0.51”) to the
body, have not been tested. Therefore operation of the phone in nontested situations may not meet the limits for RF exposure set by the FCC
and must be avoided.
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.
15
EFFICIENT OPERATION: For your phone to operate most efficiently, do
not 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 o therw ise needed.
DRIVING
Check the laws and regulations on the use of wireless telephones in the
areas where you drive. Always obey them. Also, if using your phone while
driving, please:
• Give full attention to driving - driving safely is your first responsibility.
• Use hands-free operation, if available.
• Pull off the road and park before maki ng or answerin g a call if drivi ng
conditions so require.
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 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
• If you have any reason to suspect that interference is taking place,
turn your phone OFF 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 (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 they are adequately shielded
from external RF energy. Your physician may be able to assist you in
obtaining this information.
16
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 be using equipment that could be sensitive to external
RF energy.
Vehicles
RF signals may aff ect 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 two-way radio.” Obey all
signs and instructions.
POTENTIALLY EXPLOSIVE ATMOSPHERES
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
clearly marked. They 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 Air Bags
An air bag inflates with great force. DO NOT place objects, including both
installed or portable wireless equipm ent, 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.
17
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.
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 nonsignificant, when in the stand-by 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
of mobile phones.
What kinds of phones are in question?
Questions have been raised about hand-held mob ile 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 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.
demonstra te any ad vers e health effect s asso ciate d with the use
18
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 confl icting 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 expo sed
the animals to the RF virtually continuously--up to 22 hours per day.
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 glioma 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 laboratory 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 structural effects on the
genetic material. The cells in this assay showed changes after exposure to simulated cell phone 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.
2
19
FDA is currently working with government, industry, and academic
groups to ensure the proper follow-up to these industry-funded research
findings. Collaboration with the Cellular Telecommunications Industry
Association (CTIA) in particular is expected to lead to FDA providing
research recommendations and scientific oversight of new CTIA-funded
research based on such recommendations.
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
3
compared.
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.
4
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
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 p hones have been diag nosed wit h bra in
cancer. But it is important to understand that this type of cancer also occurs
among people who have not use d mobile phones. In fact, brain can cer 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 e xpected each year among th ose 80 m illion people, w hether
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 questi on is whethe r the risk of getting a particular form of cancer is
greater among people who use mobile phones than among the rest of the
population. One way to answer that 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
20
called a case- control study. The cur rent cas e-contr ol stud y of brain cancer s 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 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.
21
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 d o 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 i n 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 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 re mote ante nna to a mobil e phone ca rried at th e 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 websites:
Federal Communicatio ns Commission (FCC)
(select ”Information on Human Exposure to RF Fields from Cel lular and PCS Radio
Transmitters”):
http://www.fcc.gov/oet/rfsafety
World Health Organization (WHO)
International Commission on Non-Ionizing Rad iati on P rotection (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/index.html
RF Safety Program
22
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.
2. Tice et al. Tests of mobile phone signals for activity in genotoxicity and other laboratory assays. In: Annual Meeting of the
Environmental Mutagen Society; March 29, 1999, Washington, D.C.; and personal communication, unpublished results.
3. Preece, AW, Iwi, G, Davies-Smith, A, Wesnes, K, Butler, S, Lim, E, and Varey, A. Effect of a 915-MHz simulated mobile
phone signal on cognitive function in man. Int. J. Radiat. Biol., April 8, 1999.
4. 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.
Care and Maintenance
This telephone is the product of advanced engineering, design and
craftsmanship and should be treated with care. The suggestions below
will help you to enjoy this product for many years.
• Do not expose the phone to any extreme environment where the
temperature or humidity is high.
• Do not expose or store in cold temperatures. When the phone warms
up after power on, to its normal temperature, moisture can form
inside where it may damage the electrical parts.
• Do not attempt to disassemble the phone. There are no serviceable
parts inside that you can replace.
• Do not expose the phone to water , rain or li quids. It is not waterproof.
• Do not abuse this phone by dropping, knocking or violent shaking.
Rough handling can damage it.
• Do not clean the phone with strong chemicals or solvents. Wipe it
only with a soft, slightly dampened cloth.
• Do not place the telephone near computer discs, credit or travel cards
or other magnetic media. The information contained on discs or cards
may be affected by the phone.
• Do not connect incompatible products. The use of third party
equipment or accessories not made or authorized by Mitsubishi
Wireless Communications Inc. may be a safety risk.
• Do not remove the labels. The numbers on it are important for service
and other related purposes.
• Contact your service provider if you notice a defect.
23
Voice Mode Featu res
Dialing Stored Numbers
Any number stored in the phone’s memory can be recalled to the display
and dialed:
...from the Phonebook
Press the softkey to enter the Phonebook list.
1
Press up or down arrow to scroll to the desired number.
2
3
Press to dial the number. Press Cancel softkey to cancel
the call before it connects.
✱
See Phonebook, page 38.
...from the Dialed Calls List
The last 10 numbers you have dialed are stored in the Call Lists.
Press the softkey to enter the Call Lists menu.
1
Select Dialed Calls and press OK softkey.
2
Press up or down arrow to scroll to the desired number.
3
4
Press to dial the number.
...from the Received Calls List
The last 10 numbers you have answered are stored in the Call Lists.
1
Press the softkey to enter the Call Lists menu.
Select Received Calls and press OK softkey.
2
Press up or down arrow to scroll to the desired number.
3
Press to dial the number.
4
...from the Missed Calls List
The last 10 numbers you have missed are stored in the Call Lists.
1
Press the softkey to enter the Call Lists menu.
Select Missed Calls and press OK softkey.
2
Press up or down arrow to scroll to the desired number.
3
Press to dial the number.
4
...Last Number Dialed
1
Press key without inputting a number. The screen
displays the last number you have dialed.
2
Press to dial the number.
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