Radio Shack Cell Phone CT 600 User Guide

17-1105.fm Page 1 Wednesday, July 21, 1999 11:06 AM  
Cat. No.  
17-1105  
OWNER’S MANUAL  
Please read before using this equipment.  
CT-600  
Lightweight Flip-Style  
75-Memory Cellular Phone  
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One-Touch Emergency Dialing — lets you dial the  
emergency number preprogrammed into your  
WXYZ  
phone, by briefly holding down the  
9
key.  
Security Features — to prevent unauthorized  
phone use, you can set up to five different levels of  
call restrictions (to allow only incoming calls, for ex-  
ample) while still allowing calls to the prepro-  
grammed emergency number.  
Scratchpad Memory — lets you temporarily store a  
number (during a call, for example), then easily dial  
it or store it in memory.  
Ample Talk and Standby Time — the supplied bat-  
tery (fully charged) provides about 2 hours of talk  
time or 30 hours of standby time.  
Vibration and Silent Alert Modes — let you set the  
phone to vibrate gently (instead of ring) when it re-  
ceives a call, or make no sound or movement at all,  
to avoid disturbing others. See “Ringing Options” on  
Page 52.  
Call Timers — lets you keep track of the individual  
and cumulative call times (air time) for each active  
number that you can reset at any time. Also includes  
a cumulative timer for both active numbers (cannot  
be reset).  
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Two Phone Number Capability — lets you use this  
one phone with two different cellular services, with a  
different phone number for each.  
We recommend you record your phone’s Elec-  
tronic Serial Number (ESN) here. The number is  
under the phone’s battery.  
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CONTENTS  
A Look at the Display ......................................... 8  
Preparation ........................................................ 10  
Installing the Battery .................................... 10  
Important Battery Tips ................................. 10  
Charging the Battery .................................... 13  
When to Recharge the Battery ............. 14  
Discharging Batteries .................................. 15  
Basic Operation ................................................ 17  
Turning the Phone On and Off .................... 17  
Making a Call ............................................... 17  
Signal Strength ..................................... 18  
Receiving a Call ........................................... 19  
Adjusting the Volume ................................... 21  
Using Mute .................................................. 21  
Making Emergency Calls ............................. 22  
Using the Call Log ....................................... 23  
Clearing the Call Log ............................ 25  
Turning Automatic Redial On/Off ................. 25  
Menu Overview ................................................. 27  
Security Features .............................................. 32  
Using Your Security Code ........................... 32  
Changing the Lock Code ............................. 33  
Locking Your Phone .................................... 34  
Selecting a Call Restriction Level ................ 35  
Restoring Factory Settings .......................... 37  
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Turning One-Touch Emergency  
Dialing On/Off ............................................... 38  
Turning Keyguard On/Off ............................. 38  
Cellular Systems ............................................... 40  
Selecting the Active Phone Number ............ 40  
Setting the Cellular System Type ................. 41  
Roaming ....................................................... 45  
Special Phone Services ............................... 46  
Calling Line ID ...................................... 46  
Call Waiting ........................................... 46  
Message Waiting .................................. 47  
Other Services ...................................... 48  
Special Features ................................................ 49  
Call Timers ................................................... 49  
Backlight Control .......................................... 50  
Keypad Tones .............................................. 51  
Ringing Options ............................................ 52  
Ringing Tone ................................................ 53  
Ring Volume ................................................. 54  
Using Calling Card Dialing ........................... 54  
Storing/Clearing a Calling  
Card Number ........................................ 54  
Using a Stored Calling  
Card Number ........................................ 57  
Using Touch-Tone Services .......................... 59  
Adding a Pause .................................... 59  
Adding a Wait ........................................ 60  
Sending Touch-Tones ........................... 60  
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Data Mode ................................................... 60  
PIN Code Dialing ......................................... 62  
Reminder Message ..................................... 64  
Changing the Display Language ................. 65  
Using Automatic Answer ............................. 65  
Turning One-Touch Dialing On/Off .............. 66  
Memory Features .............................................. 68  
Storing a Number and Name in Memory ..... 68  
Using Number Quick Store ................... 70  
One-Touch Speed Dialing ............................ 70  
Memory Scrolling ......................................... 71  
Moving a Number to a Different  
Memory Location ......................................... 72  
Editing a Stored Name or Number .............. 72  
Clearing Memory Locations ......................... 73  
Using Scratchpad Memory .......................... 74  
Accessories ...................................................... 76  
Safety Information ............................................ 77  
Traffic Safety ............................................... 77  
Operating Environment ................................ 77  
Emergency Calls ......................................... 79  
FCC Regulations ......................................... 80  
Troubleshooting ................................................ 81  
Care and Maintenance ...................................... 82  
Specifications ................................................... 84  
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A LOOK AT THE DISPLAY  
AB  
Indicates the type of network selected:  
A
B
.................... A system only  
.................... B system only  
AB .................. Both systems  
No Indicator ..... Home area only  
See “Setting the Cellular System Type”  
on Page 41.  
Flashes if the phone is using a Home  
type system (not the Home system) or  
when the phone is using a “preferred”  
network.  
This icon does not appear if the phone  
is using a non-preferred network.  
A call is in progress.  
ABC  
ABC  
Appears when you press  
letters.  
to enter  
See “Storing a Number and Name in  
Memory” on Page 68.  
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Appears when you have a message  
waiting in your voice mailbox (if your  
cellular service supports it).  
See “Message Waiting” on Page 47.  
Not used on this phone.  
188  
Indicates the number of a selected  
menu or memory function.  
See “Menu Overview” on Page 27 or  
“Memory Features” on Page 68.  
Indicates the cellular signal strength.  
The higher the bar, the stronger the sig-  
nal.  
See “Signal Strength” on Page 18.  
Indicates the battery charge level. The  
higher the bar, the more charge left in  
the battery.  
See “When to Recharge the Battery” on  
Page 14.  
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PREPARATION  
INSTALLING THE BATTERY  
To install the battery, place  
the tabs on the bottom of  
the battery into the slots on  
the back of the phone (near  
the bottom). Then move the  
top of the battery toward the  
phone until it locks into  
place.  
To remove the battery, first  
be sure the phone is turned  
off. Then gently push down  
on the battery’s latch and lift  
the battery away from the  
phone.  
IMPORTANT BATTERY TIPS  
You must fully charge a new battery for at least  
24 hours before you first use it. See “Charging  
the Battery” on Page 13.  
• Use only the supplied charger and use only bat-  
teries recommended for this phone.  
• The battery is a sealed unit with no serviceable  
parts. Do not try to open the case.  
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• A new battery’s full performance is achieved  
only after two or three complete charge and dis-  
charge cycles.  
• When you are not using the charger, disconnect  
it from power. Do not leave a battery charging  
on the charger for more than a week, since  
overcharging could shorten the battery’s life.  
• If left unused, a fully charged battery discharg-  
es itself in about a week.  
• When a battery is not in use, store it uncharged  
in a cool and dark place.  
• You can purchase additional standard or ex-  
tended capacity batteries through your local  
RadioShack store.  
• A battery can be charged and discharged hun-  
dreds of times, but it eventually wears out.  
When the operating time (talk time and standby  
time) is noticeably shorter than normal, it is time  
to get a new battery.  
• Occasionally, allow the battery pack to fully dis-  
charge. Otherwise, the battery pack loses its  
ability to fully recharge. See “Discharging Bat-  
teries” on Page 15.  
• Leaving the battery in a hot or cold place, such  
as in a closed car in the summer or winter, re-  
duces the battery’s capacity and life. Always try  
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to keep the battery between 41° and 95°F (5°  
and 35°C). A phone with a battery that is too hot  
or too cold might not work, even when the bat-  
tery is fully charged, until the battery returns to  
a normal temperature. Nickel metal hydride  
(NiMH) batteries are particularly limited in tem-  
peratures below 14°F (–10°C).  
• Use the battery only for its intended purpose.  
• Never use any charger or battery that is dam-  
aged or worn out.  
• Do not short circuit the battery. Accidental short  
circuiting can occur when a metal object (coin,  
paper clip, pen, or similar) directly connects the  
battery’s + and – terminals (the metal strips on  
the back of the battery), such as when you car-  
ry a spare battery in your pocket or purse. Short  
circuiting the terminals might damage the bat-  
tery or the object connected to it.  
• Do not dispose of batteries in a fire!  
Nickel Cadmium and Nickel Metal  
Hydride batteries must be recycled  
or disposed of properly. They must  
not be disposed of in municipal  
waste.  
NiCd  
NiMH  
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CHARGING THE BATTERY  
Once you install the battery on the phone, follow  
these steps to charge or recharge the battery using  
the supplied charger.  
1. Insert the charger’s bar-  
rel plug into the jack on  
the back of the sup-  
plied stand, then set the  
phone on the stand with  
the phone’s keypad fac-  
ing out.  
Or, to charge the phone  
without the stand (so  
you can use the phone  
while it is charging, for  
example), insert the  
charger’s barrel plug  
into the jack on the bot-  
tom of the phone.  
2. Connect the charger’s AC plug to a standard  
AC outlet. The battery charge indicator bar ap-  
pears and begins to scroll.  
Notes:  
For the fastest charging, be sure the phone  
is turned off during charging.  
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If you use the phone while it is charging,  
charging takes longer.  
If the battery is too hot or cold, charging  
stops until the battery temperature returns to  
normal.  
With a new or completely discharged battery,  
the phone may take up to 45 minutes to  
show that charging is in progress.  
3. The battery indicator bar stops scrolling when  
the battery is fully charged. Remove the phone  
from the charging stand or disconnect the  
charger from the AC outlet and the phone.  
Using the supplied battery (fully charged), you have  
about 2 hours of talk time or 30 hours of standby  
time.  
When to Recharge the Battery  
Your phone displays the battery charge bar whenev-  
er the phone is on to keep you informed about the  
battery’s power level. The higher the bar, the more  
power left in the battery.  
You can recharge the battery (as described in  
“Charging the Battery” on Page 13) at any time.  
However, when your phone gives you these low bat-  
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tery indications, recharge the battery as soon as  
possible:  
• When only a few minutes of talk time remain,  
the phone sounds a warning tone and displays  
BATTERYLOWat regular intervals.  
• When the battery charge level is too low for the  
phone to operate, the phone displays RE-  
CHARGE BATTERY and sounds a warning  
tone. The phone automatically turns off about  
10 seconds later.  
Note: The phone does not sound low battery warn-  
ing tones if silent service or vibrate is selected (see  
“Ringing Options” on Page 52).  
DISCHARGING BATTERIES  
Rechargeable batteries last longer and perform bet-  
ter if occasionally allowed to fully discharge. Your  
phone reminds you to discharge the battery with a  
series of battery advice messages, such as BAT-  
TERY LOW and RECHARGE BATTERY. Press  
,
OK  
, or  
to page through the information, or press  
CLR  
to clear the messages.  
You can discharge the battery by leaving the phone  
on until the phone automatically turns off or you can  
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use the battery discharge feature of any approved  
accessory available for your phone.  
To fully discharge the battery, wait at least 30 min-  
utes after the phone turns off before you connect it  
to the charger.  
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BASIC OPERATION  
TURNING THE PHONE ON AND  
OFF  
Note:  
Extend the antenna fully during a call. Avoid  
unnecessary contact with the antenna when the  
phone is turned on.  
The phone must be turned on before you can make  
or answer calls. To turn on the phone, hold down  
PWR  
(below and to the bottom left of the display) until  
the phone beeps. The phone performs a short self-  
test, then it briefly displays the active phone number  
(see “Selecting the Active Phone Number” on  
Page 40). The phone is ready to use when the sig-  
nal strength and battery charge bars appear.  
PWR  
To turn off the phone, hold down  
beeps.  
until the phone  
MAKING A CALL  
1. Open the flip cover. Use the number keys to en-  
ter the phone number you want to dial. Include  
the area code, if necessary.  
Note:  
If you make a mistake, repeatedly press  
CLR  
to delete digits one at a time, or hold down  
to clear all digits.  
CLR  
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SEND  
2. Press  
to dial the phone number. The  
. When the  
phone displays the number and  
number disappears and CALL appears, your  
call has been connected.  
Notes:  
PINCALLappears if PIN code dialing is set  
to ON (see “PIN Code Dialing” on Page 62).  
SEND  
Press  
again after you hear the prompt  
to send your PIN code and complete the call.  
NOSERVICEappears and the phone beeps  
if you are outside the cellular service area.  
See “Signal Strength” below.  
CALLNOTALLOWEDbriefly appears if you  
try to make a restricted call (see “Selecting a  
Call Restriction Level” on Page 35), or if the  
phone is locked (see “Locking Your Phone”  
on Page 34).  
END  
3. To end the call, press  
.
Signal Strength  
A cellular phone sends and receives radio signals.  
As with all radio equipment, the quality of reception  
depends on the strength of the signal in the area  
where you are operating your phone.  
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The vertical bar on the left of your phone’s  
display shows the strength of the cellular  
signal your phone is receiving. The higher  
the bar, the stronger the signal.  
If the signal strength is low, try moving to  
a different location. If you are using the  
phone in a building, try moving closer to a  
window.  
If NOSERVICEappears, your phone is outside the  
cellular service area. This means you cannot make  
or receive calls until you move the phone back into  
the cellular service area.  
RECEIVING A CALL  
When your phone receives an incoming call, it rings  
(or vibrates if a vibrating battery is installed and vi-  
brate is selected) and flashes CALL. To answer a  
PWR  
END  
call, press any key except  
or  
. To stop the  
phone from ringing without answering the call imme-  
SEND  
END  
diately, press  
, then press  
when you  
are ready to answer the call.  
Notes:  
• After the first ring, if you subscribe to calling line  
ID service through your cellular carrier (see  
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“Calling Line ID” on Page 46), the phone auto-  
matically displays the calling party’s phone  
number or, if it is programmed into your phone,  
the calling party’s name (see “Storing a Number  
and Name in Memory” on Page 68).  
• If you selected silent service (see “Ringing Op-  
tions” on Page 52), the phone does not ring. In-  
stead, the keypad and display backlights flash,  
CALLflashes on the display (or caller informa-  
tion appears), and the phone beeps once.  
• If keyguard is set to ON (see “Turning Keyguard  
On/Off” on Page 38), you can answer a call  
SEND  
only by pressing  
.
END  
To end the call, press  
. To clear calling line ID  
CLR  
information (if any) from the display, press  
.
If you do not answer a call, the phone displays NN  
MISSEDCALLS(where NN is the number of calls)  
and stores the caller’s number (if available) in the  
missed calls list. To review the missed calls list,  
OK  
press  
then press  
or  
to scroll through the  
PWR  
numbers. Or, press any other key (except  
) to  
clear the display. See “Using the Call Log” on  
Page 23.  
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Hint: To quickly store the displayed caller’s number  
(if available) into the first empty speed-dial memory,  
OK  
press  
twice (see “Using Number Quick Store”  
on Page 70).  
ADJUSTING THE VOLUME  
To increase or decrease the earpiece volume during  
a call, press  
(to increase) or  
(to decrease).  
Your phone displays  
VOLUME and a horizon-  
tal bar indicating the vol-  
ume level. The more  
filled bar segments, the  
higher the volume.  
VOLUME  
USING MUTE  
To turn off the phone’s microphone during a call so  
the other party on the phone cannot hear you (so  
you can talk privately with someone else in the  
room, for example), press MENU briefly. Use  
or  
OK  
to select MUTEand press  
. MUTEDappears.  
To turn on the microphone again, press MENU brief-  
OK  
ly then press  
. MUTE OFFappears.  
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END  
Note: Pressing  
to end a call also turns the mi-  
crophone back on.  
MAKING EMERGENCY CALLS  
The primary local emergency number (such as 911)  
is programmed into your phone at the time of activa-  
tion. To prevent unwanted emergency calls, howev-  
er, your phone’s one-touch emergency dialing  
feature is preset to OFF. To set it to ON, see “Turn-  
ing One-Touch Emergency Dialing On/Off” on  
Page 38.  
To quickly dial the emergency number (if one-touch  
WXYZ  
emergency dialing is set to ON), hold down  
9
until the phone displays ATTEMPTINGEMERGEN-  
CYCALL.  
Notes:  
• The emergency number programmed into your  
phone might not be valid in all areas. (For ex-  
ample, not all areas have 911 service.) If you  
use the phone outside its primary service area,  
you might have to manually dial an emergency  
number if it is different from the one pro-  
grammed into your phone.  
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• One-touch emergency dialing does not operate  
if keyguard is turned on (see “Turning Keyguard  
On/Off” on Page 38) or if one-touch emergency  
dialing is turned off.  
Important: When you make an emergency call,  
give your name and cellular phone number, as well  
as the location of the incident. Remember that your  
phone might be the only means of communication at  
the accident scene. Do not end the call until you are  
advised you may do so.  
USING THE CALL LOG  
Your phone automatically stores the last fifteen  
numbers you dialed. And, if you have calling line ID,  
it also stores the phone numbers of the last 15 calls  
received and the last 15 calls missed.  
Follow these steps to view the Call Log.  
MENU  
1. Press  
then  
or  
until you see CALL  
OK  
LOG. Press  
.
OK  
2. Press  
pears.  
when the list you want to view ap-  
Select DIALED CALLS to view the phone  
numbers you have dialed.  
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Select RECEIVED CALLS to view the phone  
numbers of the calls you received.  
Select MISSED CALLS to view the phone  
numbers of the calls you missed.  
3. Press  
or  
to scroll through the numbers.  
Notes:  
NONUMBERSappears if the selected list is  
empty.  
If a number matches a number in one of the  
memory locations, the name associated with  
the phone number appears.  
SEND  
To dial a displayed number, simply press  
.
CLR  
To quickly redial a number, hold down  
to clear  
SEND  
the display then press  
. The phone displays  
or to  
the last number dialed. Repeatedly press  
scroll through the last 15 numbers dialed. When the  
SEND  
number you want to redial appears, press  
again.  
Hint: To quickly store a number into the first empty  
speed-dial memory, recall that number, then press  
OK  
twice (see “Using Number Quick Store” on  
Page 70).  
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Clearing the Call Log  
Follow these steps to clear all numbers in the Dialed  
Calls, Received Calls, and Missed Calls lists from  
your phone.  
MENU  
1. Press  
then  
or  
until you see CALL  
OK  
LOG. Press  
.
2. Press or  
until you see ERASEALLRE-  
OK  
CENTCALLS, press  
again.  
3. The phone prompts ARE YOU SURE?. Press  
OK  
CLR  
to erase, or press  
to exit without eras-  
ing.  
TURNING AUTOMATIC REDIAL  
ON/OFF  
Sometimes the cellular network is busy and your call  
does not go through. You get a SYSTEMBUSY...  
message and are asked to redial. If Automatic Redi-  
al is set to On, the phone automatically tries 3 more  
times to connect the call. If the call connects, the  
phone beeps to notify you.  
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Follow these steps to view and change the current  
setting.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see AUTOMATICRE-  
OK  
DIALand the current setting. Press  
if you  
CLR  
want to change it or  
3. Press or  
Off. Press  
to exit.  
to move the pointer to On or  
OK  
.
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MENU OVERVIEW  
This section lists your phone’s menu functions, the  
shortcut keys (if any) you can use to access the  
functions, and the pages in this manual where you  
can find full descriptions of the functions.  
To select a specific menu function, press that func-  
tion’s shortcut keys (if any).  
To scroll forward or backward through all menu  
MENU  
functions, press  
then  
(forward) or  
(back-  
OK  
ward). Press  
to select a displayed function.  
See  
Pg.  
You See  
Shortcut/Description  
Memory storage and recall  
PHONE  
BOOK  
71  
68  
73  
MENU  
1
1
Name:  
Find name.  
MENU  
ABC  
1
2
Name:  
Save name and number  
MENU  
GHI  
1
One by one  
Erase all  
4
Erase from phone book  
MENU  
JKL  
1
N% OF  
MEMORY  
AVAILABLE  
5
% memory available  
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See  
Pg.  
You See  
Call Log  
Shortcut/Description  
Contains recent call information  
MENU  
ABC  
1
Last number  
dialed  
2
25  
Displays the dialed call numbers  
MENU  
ABC  
ABC  
Last received  
number  
2
2
25  
25  
Displays the received call num-  
bers (with calling line ID)  
ABC  
DEF  
MENU  
2
3
Last number  
missed  
Displays the missed call num-  
bers  
MENU  
ABC  
GHI  
2
4
ARE YOU  
SURE?  
25  
49  
Clears the call log  
MENU  
ABC  
JKL  
2
5
CALL  
TIMERS  
Displays the length of calls and  
reset timers  
MENU  
ABC  
JKL  
1
2
5
49  
49  
49  
LAST  
CALL  
(elapsed time)  
Displays the length of the last  
call for the active number  
MENU  
ABC  
JKL  
ABC  
2
5
2
ALL  
CALLS  
(elapsed time)  
Displays the total length of all  
calls for the active number  
MENU  
ABC  
JKL  
DEF  
2
5
3
LIFE  
TIMER  
(elapsed time)  
Displays the total length of all  
calls on all active numbers  
28  
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See  
Pg.  
You See  
Shortcut/Description  
ABC  
JKL  
GHI  
MENU  
2
5
4
CLEAR  
TIMERS  
49  
Resets the timers (except life  
timer)  
PHONE  
SETTINGS  
MENU  
DEF  
1
3
Silent  
Ring  
52  
Select ring options  
Ring+Vibra  
Increasing  
Vibrate  
DEF  
MENU  
3
1
1
ON  
OFF  
54  
Select the automatic redial set-  
ting  
MENU  
DEF  
ABC  
3
2
Level N  
Type N  
Level N  
54  
53  
51  
Selects the ringing volume  
MENU  
DEF  
DEF  
3
3
Selects the ringing tone  
MENU  
DEF  
GHI  
3
4
Display and select the keypad  
tone volume level  
MENU  
DEF  
JKL  
3
5
On  
Off  
51  
51  
Display and select the backlight  
setting  
DEF  
MNO  
MENU  
3
6
On  
Off  
Display and select the one-touch  
dialing setting  
29  
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See  
Pg.  
You See  
Shortcut/Description  
DEF  
PQRS  
MENU  
3
7
On  
38  
65  
40  
65  
Off  
Display and turn on/off one-  
touch emergency dialing  
TUV  
MENU  
DEF  
3
8
Portugues  
English  
Francais  
Display and select the display  
language  
WXYZ  
DEF  
MENU  
9
3
Phone  
Number  
Display and select the active  
phone number  
DEF  
OPER  
MENU  
3
1
0
On  
Off  
Display and select the automatic  
answer setting  
Accesses the security settings  
Security  
code:  
33  
33  
OK  
MENU  
GHI  
4
(security code)  
CHANGE  
LOCK CODE Changes the 4-digit lock code  
OK  
MENU  
GHI  
(security code)  
CHANGE  
SECURITY  
CODE  
4
Changes the 5-digit security  
code  
GHI  
OK  
MENU  
4
(security code)  
RESTORE  
FACTORY  
SETTINGS  
33  
Restores factory settings  
30  
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See  
Pg.  
You See  
Shortcut/Description  
CALL  
SETTINGS  
JKL  
MENU  
5
1
None  
Card A  
Card B  
55  
Selects and activates a calling  
card option  
MENU  
JKL  
ABC  
5
2
CALLING  
OPTIONS  
36  
35  
Selects carrier and calling  
options  
JKL  
ABC  
ABC  
MENU  
5
2
2
(secu-  
Incoming  
Allow all  
OK  
rity code)  
Nat’l only  
Local only  
Mem. only  
Displays and selects a call  
restriction level  
OK  
OK  
MENU  
JKL  
ABC  
5
2
Home only  
Preferred  
Non-pref.  
Any  
44  
34  
OK  
(security code)  
Selects the roaming mode  
MENU  
MNO  
6
Enter lock  
code:  
Locks your phone  
31  
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SECURITY FEATURES  
USING YOUR SECURITY CODE  
You use your security code to access all security  
settings (such as changing the lock code and securi-  
ty code). The security code prevents unauthorized  
changes to your confidential settings. The phone’s  
default security code is 12345.  
To change your security code, follow these steps.  
Note:  
If you enter an incorrect code in Steps 2 or 5,  
CODEERRORappears. Enter the correct code and  
continue with the next step.  
MENU  
1. Press  
then  
or  
until you see SECURI-  
OK  
TY SETTINGS. Press  
.
OK  
2. Enter the current security code and press  
3. Press or  
RITYCODE. Press  
.
until you see CHANGE SECU-  
OK  
.
4. Enter a new 5-digit security code and press  
OK  
. Verifynewcode:appears.  
5. Enter the new security again code and press  
OK  
. Your phone displays SECURITY CODE  
CHANGED.  
32  
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CHANGING THE LOCK CODE  
At the time of activation, your phone is programmed  
with, and you were given, a 4-digit lock code which  
is required to lock your phone and change the set-  
tings of some menu functions (such as the call re-  
striction level and calling card dialing). The phone’s  
default lock code is 1234.  
To change your 4-digit lock code, follow these steps.  
Note:  
If you enter an incorrect code in Steps 2 or 4,  
CODEERRORappears. Enter the correct code and  
continue with the next step.  
MENU  
1. Press  
then  
or until you see SECURI-  
OK  
TYSETTINGS. Press  
.
OK  
2. Enter your security code and press  
.
CHANGELOCKCODEappears.  
OK  
3. Press  
again, then enter a new 4-digit lock  
OK  
code. Press  
. The phone prompts you to  
confirm the new lock code.  
OK  
4. Enter the new lock code again, then press  
to store it. LOCK CODE CHANGED appears  
briefly to confirm the change.  
33  
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LOCKING YOUR PHONE  
When you lock your phone, you can receive incom-  
ing calls as usual but you cannot make outgoing  
calls, except to the number stored in memory loca-  
tion 75 (see “Storing a Number and Name in Memo-  
ry” on Page 68) and the emergency number  
programmed into your phone (memory location 9).  
Also, you cannot access the phone’s memory or  
menus.  
Follow these steps to lock and unlock your phone.  
MENU  
1. Press  
then  
or  
until you see LOCK  
OK  
PHONE. Press  
.
2. The phone prompts you to enter the 4-digit lock  
code.  
OK  
3. Enter the lock code and press  
. The phone  
displays PHONELOCKED.  
LOCKEDremains on the display to remind you that  
the phone is locked. To unlock the phone, press  
MENU  
. The phone prompts you for the lock code. Enter  
OK  
it and press  
ly.  
. PHONEUNLOCKEDappears brief-  
To make a call to the number stored in location 75  
SEND  
when the phone is locked, press  
then  
. To  
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call the emergency number, dial the entire emergen-  
SEND  
cy number then press  
.
SELECTING A CALL  
RESTRICTION LEVEL  
Your phone is preset to let you (or anyone else) dial  
any type of number (local or long distance) and free-  
ly access any information stored in its memory. To  
prevent unauthorized use of your phone, however,  
you can enter your 4-digit lock code (see “Changing  
the Lock Code” on Page 33) and set any of these  
varying levels of call restrictions.  
Important:  
You can dial the pre-programmed emer-  
gency number regardless of which call restriction  
level you select.  
Restriction  
Description  
Level  
ALLOW  
ALL  
No restrictions (default setting).  
NATIONAL Calls can be made only within your  
ONLY  
own country; no international calls  
are allowed.  
35  
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Restriction  
Description  
Level  
LOCAL  
ONLY  
You can only make local calls or  
calls to toll-free numbers (such as  
800, 888, and 877 numbers).  
MEMORY  
ONLY  
All incoming calls can be answered.  
Outgoing calls are restricted to num-  
bers stored in memory. The memory  
cannot be changed.  
INCOMING All incoming calls can be answered.  
Your phone will not allow any outgo-  
ing calls. The memory cannot be  
accessed or changed.  
Follow these steps to view the current setting or se-  
lect a new call restriction level.  
MENU  
1. Press  
then  
or  
until you see CALL  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see CALLING OP-  
.
OK  
TIONS. Press  
3. Press or  
until you see ALLOWEDCALLS  
OK  
and the current setting. Press  
if you want to  
change it.  
4. The phone prompts you for your 5-digit security  
OK  
code. Enter it and press  
.
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5. Use  
or  
to move the pointer to the option  
OK  
you want, then press  
to select it.  
RESTORING FACTORY  
SETTINGS  
Follow these steps to reset the phone’s menus to  
their default settings.  
Note:  
The lock code and security code are not  
changed when you reset the menu settings.  
MENU  
1. Press  
then  
or until you see SECURI-  
OK  
TYSETTINGS. Press  
.
OK  
2. Enter your security code then press  
.
3. Press  
or  
until you see RESTOREFAC-  
OK  
TORYSETTINGS. Press  
.
OK  
4. The phone asks you to confirm. Press  
to re-  
CLR  
END  
set or press  
ting.  
or  
to exit without reset-  
OK  
If you press  
, the phone briefly displays  
SETTINGSRESTORED.  
37  
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TURNING ONE-TOUCH  
EMERGENCY DIALING ON/OFF  
One-touch emergency dialing lets you call the pri-  
mary emergency number programmed into your  
WXYZ  
9
phone by holding down  
for about 2 seconds.  
One-touch emergency dialing is preset to OFF. To  
turn it on or back off at any time, follow these steps.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see EMERGENCY 9  
OK  
DIALINGand the current setting. Press  
if  
you want to change it.  
3. Use  
or  
to move the pointer to Onor Off.  
OK  
END  
Then press  
to select it and press  
or  
CLR  
to exit.  
TURNING KEYGUARD ON/OFF  
You can use keyguard to disable the phone’s key-  
pad and prevent accidental keypresses (when the  
phone is in a pocket or a purse, for example).  
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When keyguard is on:  
• The phone displays KEYGUARDACTIVEuntil  
you press a key.  
• When you press any key, the phone displays  
PressMenuandthen  
to prompt you  
to turn off keyguard.  
SEND  
To answer a call, you must press  
. During  
the call, keyguard automatically turns off.  
END  
• When you press  
to end a call, keyguard  
automatically turns back on.  
• You cannot turn off the phone.  
• You cannot use one-touch emergency dialing.  
However, you can manually dial the emergency  
number programmed into your phone (911 for  
SEND  
example) and press  
to place the call.  
The phone does not display any digit until you  
have entered the entire number.  
MENU  
To turn on keyguard, press  
or hold down  
END  
for about 2 seconds (this is handy when you  
are ending a call, for example).  
MENU  
To turn off keyguard, press  
Nowpress . Press  
plays KEYGUARDOFF.  
. The phone displays  
. The phone briefly dis-  
39  
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CELLULAR SYSTEMS  
SELECTING THE ACTIVE PHONE  
NUMBER  
Every cellular telephone has at least one NAM  
(Number Assignment Module), which is used to  
store its phone number.  
Your phone has two NAMS. If you subscribe to two  
cellular services (for example, competitive cellular  
systems in your area or cellular systems in different  
cities), each of your phone’s NAMs was pro-  
grammed with a different phone number at the time  
of activation.  
If your phone is programmed with two different num-  
bers, follow these steps to view the currently active  
phone number and select a different active number  
(the number you want to use to make and receive  
calls).  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press or until you see PHONE NUMBER  
and the currently active phone number. Press  
OK  
if you want to change to the other number.  
END  
Or, press  
to exit the menu.  
3. Press  
or  
to move the pointer to the num-  
OK  
ber you want to use. Press  
to select it.  
40  
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Notes:  
• You cannot change the active number during a  
call. If you try to, the phone displays CALLIN  
PROGRESSand exits the menu.  
• If you want to receive calls on both numbers at  
the same time and you subscribe to call for-  
warding through your cellular service providers,  
you can set both numbers on your phone to for-  
ward to the other number if not answered. Con-  
tact your cellular service providers for details.  
SETTING THE CELLULAR  
SYSTEM TYPE  
Every cellular market has two cellular service pro-  
viders. One of these providers is designated Provid-  
er A and the other Provider B.  
Your phone is activated to operate based on your  
cellular service provider’s designation (A or B). If  
you travel with your phone to a city where you do  
not subscribe to cellular service, however, you can  
select any of these system settings on your phone  
(based on how you want the phone to operate in  
that city).  
41  
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Notes:  
• Using the phone in a city where you do not sub-  
scribe to a cellular service is referred to as  
roaming. See “Roaming” on Page 45.  
• The designation (A or B) that appears with the  
setting is based on the selected phone num-  
ber’s NAM.  
• Usually, it is less expensive to use the same  
provider type for cellular service when you are  
in your home city and when you roam. To do  
this, you need to know whether your cellular  
service provider is type A or B in your home city  
and in each city where you plan to travel.  
• It is possible for a cellular service provider to be  
(or have agreements with) Provider A in some  
cities and Provider B in others.  
PREFERRED — Your dealer can program a list of  
“preferred” networks into your phone (which in-  
cludes your home system). If so, your phone tries to  
use the home system, then the strongest available  
network in this list. If not, the phone will try to use a  
network that is the same type (A or B) as your home  
system. Check with your dealer to see if your phone  
has been programmed with a list of preferred net-  
works to use. You can still choose this option even if  
your phone has not been preprogrammed; that way  
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your phone will use only networks of the same type  
(A or B) as your home system.  
NON-PREFERRED — Use this setting if you want  
your phone to use a network that is of a different  
type than your home system.  
ANY — Use this setting if you want the phone to use  
either Provider A or Provider B. The phone uses its  
home type system when possible and the non-home  
type system when service is not available on its  
home type system.  
HOME AREA — Use this setting if you do not want  
to roam (you can only use the phone within the area  
covered by your home cellular service provider).  
If the phone is using:  
Display shows:  
Home system  
(non-flashing)  
No text or name of home  
system  
Preferred network  
(flashing)  
PREFERRED, or name  
of preferred network  
Home-type (no pre-  
ferred list in phone)  
(flashing)  
ROAMING  
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If the phone is using:  
Display shows:  
Home-type (phone has (no icon)  
preferred list)  
ROAMING  
Non-home-type  
(no icon)  
NON PREF.  
Follow these steps to view the currently selected  
cellular system type and change it.  
MENU  
1. Press  
then  
or  
until you see CALL  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see CALLING OP-  
.
OK  
TIONS. Press  
3. Press or  
until you see CARRIER SE-  
OK  
LECTIONand the current setting. Press  
you want to change it. Or, press  
if  
CLR  
END  
or  
to  
exit the menu.  
4. The phone prompts you for your 5-digit security  
OK  
code. Enter it and press  
.
5. Press  
or  
to move the pointer to the option  
OK  
you want. Press  
. CARRIER SELECTION  
CLR  
and the selected setting appears. Press  
or  
END  
to exit the menu.  
44  
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ROAMING  
Using the phone in a city where you do not sub-  
scribe to a cellular service is referred to as roaming.  
When you roam, ROAMINGturns on steadily if the  
phone is using its home type system, and flashes  
when it is using a cellular system that is different  
from your home system (non-home type system).  
In some areas, the cellular system’s computer auto-  
matically recognizes roaming telephones. In other  
areas, you must contact the service provider before  
it can recognize your phone. The operator needs to  
know your telephone number, your phone’s ESN  
(Electronic Serial Number), and how you plan to pay  
for your calls. There is normally an additional charge  
for roaming calls.  
Note:  
Your phone’s ESN is under the phone’s bat-  
tery. (However, the roaming cellular service provider  
can usually automatically determine your phone’s  
ESN when you call.)  
45  
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SPECIAL PHONE SERVICES  
Calling Line ID  
If you subscribe to calling line identification service  
with your cellular carrier, your phone is preset to au-  
tomatically display the caller’s phone number or  
name (if available) each time it receives a call. If you  
stored the caller’s phone number with a name in the  
phone’s memory (see “Storing a Number and Name  
in Memory” on Page 68), that stored name appears.  
Hint:  
To quickly store the displayed caller’s number  
into the first empty speed-dial memory, display the  
OK  
record then press  
twice (see “Using Number  
Quick Store” on Page 70).  
Call Waiting  
If you subscribe to Call Waiting service with your  
cellular carrier, your phone displays the caller’s  
phone number or name and flashes CALLING. To  
answer the call without disconnecting your current  
SEND  
SEND  
call, press  
. Press  
to return to your orig-  
inal call. Repeat this to switch between the calls  
END  
again. To end the current call, press  
. To re-  
SEND  
turn to the other call, press  
.
46  
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If you do not answer the incoming call, the display  
clears after 20 seconds and the number appears on  
the Missed Calls List. To clear the display without  
SEND  
answering the call, press any key except  
,
END  
PWR  
, or  
.
Message Waiting  
If you subscribe to voice mail service with your cellu-  
lar carrier, calls you do not answer are sent to your  
voice mailbox. A voice mailbox is somewhat like an  
answering machine, because you must call it and  
enter a password or personal identification code to  
listen to your messages. (For information about us-  
ing your voice mailbox, contact your cellular carrier.)  
When your phone is turned on and receives voice  
mail notification from your cellular carrier, it displays  
to notify you that you have one or more mes-  
sages waiting in your mailbox. When you call your  
mailbox and listen to your message(s),  
pears.  
disap-  
Hint: If you subscribe to voice mail service, you can  
store the number you call to reach your mailbox in a  
one-touch dial location (Memory 1–8) for easy ac-  
cess. See “Storing a Number and Name in Memory”  
on Page 68.  
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Other Services  
Your cellular service provider might offer other spe-  
cial options that let you receive or make a second  
SEND  
call or conference two calls together using  
.
Contact your cellular carrier for details about these  
special services or billing.  
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SPECIAL FEATURES  
CALL TIMERS  
Your phone has three call timers that let you check  
the length of your calls in hours, minutes, and sec-  
onds (for example, 04:32:57 equals 4 hours, 32 min-  
utes, and 57 seconds). You can view the timers at  
any time (even during a call), and you can reset all  
but one.  
Follow these steps to view or reset the timers.  
MENU  
1. Press  
then  
or  
until you see CALL  
OK  
LOG. Press  
.
MENU  
Note:  
Make sure you hold  
for a couple of  
seconds during a call to get to the regular  
menu.  
2. Press  
Press  
or  
.
until you see CALL TIMERS.  
OK  
3. Press  
plays.  
or  
to scroll through the timer dis-  
LASTCALL— Shows the length of the last or  
current call.  
ALLCALLS— Shows the length of time spent  
on calls on the active phone number since the  
timer was last reset.  
LIFE TIMER — Shows the combined length  
of all calls you have made using both of your  
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phone numbers. This number cannot be reset.  
You can also view the Life Timer at any time by  
#
holding down  
for about 4 seconds.  
CLEARTIMERS— Resets all call timers, ex-  
cept for the Life Timer.  
OK  
4. To clear the timers, press  
when the phone  
displays CLEARTIMERS. The phone prompts  
you to enter your 5-digit security code.  
OK  
Enter your security code and press  
. The  
phone briefly displays TIMERS CLEARED to  
confirm that the timers have been reset.  
CLR  
END  
5. To exit the timer display, press  
or  
.
BACKLIGHT CONTROL  
Your phone is preset to turn on its display and key-  
pad backlights each time you press a key, then turn  
them off within about 15 seconds after the last key-  
press.  
To view the current backlight setting and set the  
phone so the backlights do not turn on (to conserve  
battery power, for example), or to set them to turn  
on again, follow these steps.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
50  
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2. Press  
or  
until you see LIGHTSand the  
OK  
current setting. Press  
if you want to change  
CLR  
END  
it. Or, press  
or  
to exit the menu.  
LIGHTS ON means the lights turn on for 15  
seconds when you press a key or receive a call.  
LIGHTS OFF means the lights do not turn on at  
all, except if silent ringing or vibrate is selected.  
Then they turn on and off every few seconds to  
indicate an incoming call.  
3. Press  
or  
to move the pointer to Off or  
to select it.  
OK  
On. Press  
KEYPAD TONES  
Your phone is preset to sound a tone each time a  
key is pressed. You can choose between three vol-  
ume levels for this tone or you can turn it off. To  
view the current keypad tone volume setting and  
change it at any time, follow these steps.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see KEYPADTONES  
OK  
and the current setting. Press  
if you want to  
CLR  
END  
change it. Or, press  
menu.  
or  
to exit the  
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3. Press  
or  
to move the pointer to Off or  
ON. As you scroll through the settings, the tone  
volume changes so you can sample it. Press  
OK  
to select it.  
Notes:  
Your phone sends touch tones even when the  
keypad tones are turned off.  
Your phone automatically turns off the keypad  
tones if you select silent service or vibrate (see  
“Ringing Options”).  
RINGING OPTIONS  
Follow these steps to view the current ring option  
and select how your phone alerts you when it re-  
ceives a call.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. RINGING OPTIONS and the current setting  
OK  
appear. Press  
it you want to change it. Or,  
CLR  
END  
press  
or  
to exit the menu.  
3. Press  
or  
to move the pointer to the option  
OK  
you want to use. Press  
the setting.  
to select and store  
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Notes:  
• If you select silent service or vibrate, the phone  
displays SILENT when there is no call in  
progress and when you are not using another  
function.  
To use the Ring+Vibra or Vibrate settings, you  
must use the supplied vibrating battery (Ra-  
dioShack Cat. No. 23-1024).  
RINGING TONE  
Follow these steps to view the current ring tone set-  
ting and select from six different tones that your  
phone can sound when it receives a call.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see RINGINGTONE  
OK  
and the current setting. Press  
if you want to  
CLR  
END  
change it. Or, press  
menu.  
or  
to exit the  
3. Press  
or  
to move the pointer to the ringing  
tone you want to use. As you scroll through the  
settings, the phone rings so you can hear each  
OK  
tone. Press  
to select and store the setting.  
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RING VOLUME  
Follow these steps to view and hear the current ring  
volume setting or select one of five different ring vol-  
umes for the phone.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see RINGING VOL-  
OK  
UME and the current setting. Press  
want to change it. Or, press  
if you  
CLR  
END  
or  
to exit  
the menu.  
3. Press  
or  
to move the pointer to the  
desired setting. As you scroll through the vol-  
ume levels, the phone rings so you can hear  
OK  
each level. Press  
setting.  
to select and store the  
USING CALLING CARD DIALING  
Storing/Clearing a Calling Card Number  
The calling card feature lets you store up to 2 long-  
distance calling card numbers into the phone’s  
memory, so you can place long-distance calls from  
this phone using that number.  
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Follow these steps to view and enter or change call-  
ing card information.  
MENU  
1. Press  
then  
or  
until you see CALL  
OK  
SETTINGS. Press  
.
2. CALLING CARD and the currently selected  
OK  
card name appear. Press  
to change it. Or,  
CLR  
END  
press  
or  
to exit the menu.  
3. Press  
or  
to move the pointer to None,  
OK  
CardA, or CardB, then press  
. When the  
phone prompts you for your 5-digit security  
OK  
code, enter it and press  
.
If you select None, the phone briefly displays  
NOCARDSELECTED, and no card is selected.  
If you select CardAor CardB, and you have  
never entered information for the card before,  
skip to Step 5.  
4. If you have already entered information for a  
card, you have the option to select, edit, or  
erase the information. Use  
or  
to move the  
pointer to the option you want to use and press  
OK  
.
Selectchooses this card as the one to use.  
The phone briefly displays SELECTED.  
Editallows you to change previously entered  
information, described in Steps 5 and 6.  
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Erasedeletes the stored information. To verify  
OK  
that you want to do this, press  
at the  
CLR  
ERASE? prompt. Or, press  
if you don’t  
want to erase the stored information.  
5. The phone prompts SELECT DIALING SE-  
OK  
QUENCE. Press  
to change the setting. Or,  
to exit the menu.  
CLR  
END  
press  
or  
Press  
or  
to scroll through these four dial-  
OK  
ing sequence options, and press  
one:  
to choose  
Access No. +Phone No. +Card No. —  
Use for cards that require you to enter a 1-800  
access number first, followed by a phone num-  
ber after you hear a tone, then a card number  
after another tone.  
Access No. +Card No. +Phone No. —  
Use for cards that require you to enter a 1-800  
access number first, followed by a card number  
after you hear a tone, then a phone number af-  
ter another tone.  
10xxx +Phone No. +Card No.— Use for  
cards that require you to enter an access num-  
ber (beginning with 10, then 3 digits), followed  
by a phone number after you hear a tone, then  
a card number after another tone.  
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0+PhoneNo.+CardNo.— Use for cards  
that require you to enter 0, then the phone num-  
ber after you hear a tone, then a card number  
after another tone.  
6. The phone then prompts you for other card in-  
formation, which might include (depending on  
the dialing sequence option you selected): SE-  
LECT PREFIX, Access No:, Card No:,  
and Card name:.  
For SELECT PREFIX, press  
or  
to  
move the pointer to the prefix (None, O, or  
1) that your calling card requires you to enter  
OK  
before the phone number. Then press  
.
For Access No:, Card No:, and Card  
name:, enter the information, then press  
OK  
.
The phone briefly displays CARDREADYFOR  
USE, and is set to use the card for which you  
just entered information.  
Using a Stored Calling Card Number  
Follow these steps to select a calling card type and  
make a long-distance call using the calling card  
number you stored.  
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1. Enter the phone number of the party you wish  
to call.  
SEND  
2. Hold down  
until the phone briefly dis-  
plays CARDCALLand the selected card, then  
displays WAIT FOR TONE, THEN PRESS  
‘OK’.  
Note: If no calling card is stored in memory, the  
phone displays NOCALLINGCARDSELECT-  
EDand does not complete the call.  
3. When you hear a tone or voice prompt, press  
SEND  
OK  
or  
. The phone might display WAIT  
FORTONE,THENPRESSOKagain.  
If you get another tone or voice prompt, press  
SEND  
again, then continue with the call as you  
normally would.  
Note: This procedure might not apply to all calling  
card options. For more information, look at the back  
of your calling card or contact your long distance  
carrier.  
You can also make a calling card call during a PIN  
call. See “PIN Code Dialing” on Page 62.  
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USING TOUCH-TONE SERVICES  
To use your cellular phone to control answering ma-  
chines and special telephone services (such as  
bank-by-phone or voicemail), simply press the ap-  
propriate numbers using your phone’s keypad after  
the service answers.  
Or, you can store the service’s command sequence  
in a speed-dial memory (see “Storing a Number and  
Name in Memory” on Page 68), then follow these  
steps after the service answers.  
1. Recall the memory that contains the command  
sequence.  
SEND  
2. Press  
. The phone sends the commands  
as touch tones.  
Adding a Pause  
Some services, such as voice mail, require that you  
enter an access code and then pause before enter-  
ing additional digits. To include a pause in a se-  
quence when storing it in memory, press  
. The phone displays p. When you send  
the sequence, the phone pauses for 21/2 seconds  
where you entered a pause. If you need a longer  
pause, enter multiple pauses, one after the other.  
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Adding a Wait  
If you do not know in advance how long you must  
wait before sending additional commands, insert a  
wait in your sequence by pressing  
at the appropriate place. The phone  
displays w. When you send the sequence, the  
SEND  
phone waits for you to press  
before it sends  
the rest of the stored sequence.  
Sending Touch-Tones  
To send DTMF (touch-tones) strings during a call,  
first recall the stored string from memory. Then  
press MENU briefly. Move the pointer to SendDT-  
OK  
MF, and press  
. The phone sends the DTMF  
string.  
DATA MODE  
The CT-600 automatically uses the data mode when  
your phone is connected, via a data card and a mo-  
dem, to a laptop or personal computer. You can  
then use your computer to make and receive calls,  
and to send and receive data messages, such as e-  
mail or a fax.  
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Before using data mode:  
• Be sure your phone is on, and that the battery  
has enough charge for the duration of your data  
call.  
• Be sure that you are receiving a strong signal  
(see the signal strength indicator on your dis-  
play).  
• Be sure that your computer is on, and is fitted  
with a data card.  
Connect a data cable (not supplied) to your phone.  
DATA CARD CONNECTED appears. During a call  
with the data cable connected, the phone displays  
DATACALL.  
END  
During a data call, only  
operates; the micro-  
phone and earpiece also do not operate.  
Important! When you are in the data mode, do not  
turn off the phone. Do not move the phone, or use it  
in a moving vehicle (data could be lost if you move  
from one cellular cell to another).  
To turn off the data mode, simply disconnect the  
data cable. DATACARDREMOVEDappears.  
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PIN CODE DIALING  
For security, some cellular service carriers require  
you to dial a personal identification number (PIN) in  
addition to the phone number each time you place a  
call. This is sometimes referred to as “PIN code dial-  
ing.”  
Notes:  
• This service is not required (or available) on all  
networks. Check with your local service provid-  
er.  
• If you subscribe to this service, a PIN code is  
assigned or selected at the time you activate  
your phone.  
If you subscribe to PIN code dialing with your cellu-  
lar carrier, you can store the PIN code into your  
phone’s memory and set the phone to send the  
code at the press of a button each time you place a  
call.  
Follow these steps to store your PIN code and turn  
PIN code dialing on or off.  
PQRS  
GHI  
MNO  
ABC  
#
7
4
6
2
1. Enter  
ABC  
JKL  
JKL  
#
2
5
5
(this spells  
# PIN  
CALL #).  
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The phone prompts you for your PIN Code.  
2. To store your PIN code in the phone’s memory  
and turn on PIN code dialing, enter your PIN  
OK  
code (maximum of 4 digits) and press  
. The  
phone briefly displays PINCALLON.  
OK  
To turn off PIN code dialing, simply press  
without entering a number. PINCALLOFFap-  
pears briefly.  
When PIN code dialing is set to ON, the phone dis-  
SEND  
plays PIN CALL after you press  
to place a  
call. WAITFORPROMPTappears. When you hear  
SEND  
the tone, press  
again to automatically dial  
your stored PIN code.  
The phone displays SENDINGPIN...If the mes-  
SEND  
sage remains on the display, press  
again to  
resend the PIN code. Wait for your call to be con-  
nected.  
Notes:  
• When PIN code dialing is set to ON, you can  
place a call to the emergency number pro-  
grammed into your phone (as usual) without  
sending the PIN code.  
• If you place a call using a cellular service that  
does not support PIN code dialing (and PIN  
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code dialing is set to ON), PINCALLappears,  
but the call is connected without pressing  
SEND  
the second time.  
REMINDER MESSAGE  
You can store a reminder message to appear the  
next time you turn on your phone (it will appear only  
once). Follow these steps to store a reminder mes-  
sage.  
ABC  
1. Press  
and enter your message using the  
letters on the keypad.  
OPER  
0
The  
key can be used to insert special  
OPER  
0
characters. Repeatedly press  
until you  
see the special character you want (-?!,.  
:“‘&$()0).  
MENU  
2. Press  
then turn off the phone.  
When you turn the phone on again, the reminder  
CLR  
message appears. Hold down  
sage.  
to erase the mes-  
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CHANGING THE DISPLAY  
LANGUAGE  
Your phone is preset to display its menus and mes-  
sages in English, but you can set it to use English,  
French, Spanish, or Portuguese. Follow these steps  
to view the currently selected language and change  
it.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see LANGUAGE and  
OK  
the current setting. Press  
if you want to  
CLR  
END  
change it. Or, press  
menu.  
or  
to exit the  
3. Press  
or  
to move the pointer to your lan-  
OK  
guage choice. Press  
to select and store it.  
USING AUTOMATIC ANSWER  
Note:  
This feature works only if the phone is con-  
nected to hands-free car kit.  
The automatic answer function lets you set the  
phone to automatically answer incoming calls with-  
out you having to press a key. When automatic an-  
swer is enabled and the phone receives a call, it  
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automatically answers the call after 4 seconds. Be-  
gin your conversation as usual.  
Follow these steps to view the current setting and  
turn the automatic answer function on or off.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
2. Press  
or  
until you see AUTOMATICAN-  
OK  
SWERand the current setting. Press  
want to change it. Or, press  
if you  
CLR  
END  
or  
to exit  
the menu.  
3. Press  
or  
to move the pointer to On or  
OK  
Off. Press  
.
TURNING ONE-TOUCH DIALING  
ON/OFF  
One-Touch Dialing enables you to dial important  
numbers with the touch of a single button.  
Follow these steps to view the current setting and  
turn One-Touch Dialing on or off.  
MENU  
1. Press  
then  
or  
until you see PHONE  
OK  
SETTINGS. Press  
.
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2. Press  
or  
until you see 1-TOUCHDIAL-  
OK  
ING and the current setting. Press  
want to change it. Or, press  
if you  
CLR  
END  
or  
to exit  
the menu.  
3. Press  
Press  
or  
.
to move the pointer Onor Off.  
OK  
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MEMORY FEATURES  
STORING A NUMBER AND NAME  
IN MEMORY  
Your phone has 75 speed-dial memory locations.  
Each location can hold a number of up to 32 digits,  
and a name of up to 30 characters long. Memory lo-  
cations 1–8 are used for one-touch speed dialing.  
Memory location 9 contains the preprogrammed  
emergency number. The number stored in memory  
location 75 can be dialed even when the phone is  
locked (see “Locking Your Phone” on Page 34). All  
other memory locations are for storing names and  
numbers in your phone book.  
Follow these steps to store a phone number and  
name in memory.  
OK  
MENU  
1. Press  
then press  
while PHONE BOOK  
is displayed.  
2. Press or  
until you see SAVE NAME &  
OK  
NUMBER, then press  
.
3. Enter a name at the Name:prompt and press  
OK  
.
For each letter of the name you want to enter,  
ABC  
DEF  
2
3
repeatedly press the key (  
,
, and so  
on) that contains that letter. The selected letter  
appears.  
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DEF  
3
For example, to enter the letter F, press  
three times (since the letter F is third in the  
series of letters on that key).  
OPER  
0
The  
key can be used to insert special  
OPER  
0
characters. Repeatedly press  
until you  
see the special character you want (-?!,.  
:“‘&$()0).  
CLR  
If you make an entry error, press  
the character.  
to clear  
4. Enter a phone number at the Number:prompt  
OK  
and press  
.
The phone prompts the first empty speed-dial  
memory location (such as SAVE IN LOCA-  
TION 5?), or if all locations are full, prompts  
you to enter a speed-dial memory location.  
5. To store the number in the suggested speed-  
OK  
dial memory location, press  
.
To store the number in a different memory loca-  
tion, enter that memory location’s number and  
OK  
press  
.
If that memory location is already being used,  
REPLACECONTENT?appears. To replace the  
OK  
information in that memory location, press  
.
If you do not want to replace the information in  
CLR  
that memory location, press  
. NOT SAVED  
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OK  
appears briefly. Press  
and store the infor-  
mation in a different memory location.  
Using Number Quick Store  
1. To quickly store a phone number in the first un-  
used speed-dial memory location, enter the  
OK  
phone number and press  
.
2. When SAVE IN LOCATION? appears, press  
OK  
.
The phone stores the number in the first empty  
memory location. The memory location appears in  
the display’s upper right corner.  
ONE-TOUCH SPEED DIALING  
To speed dial a number stored in memory locations  
1–8, hold down the key corresponding to that mem-  
ory location for about 2 seconds.  
To speed dial a number that is stored in your phone  
book, enter the memory location number and press  
SEND  
.
If the selected memory is empty, the phone displays  
LOCATIONEMPTY.  
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MEMORY SCROLLING  
To scroll forward or backward through all names or  
numbers stored in memory (beginning with the first  
or last memory location), repeatedly press  
(for-  
ward) or (backward). The phone displays the  
stored phone number and its corresponding memo-  
ry number.  
To begin scrolling from a specific memory location,  
first enter that number, then press  
or . If the se-  
lected memory is empty, the phone displays LOCA-  
TION EMPTY, then it displays the next memory in  
sequence.  
To begin scrolling from a specific name or letter(s),  
ABC  
press  
, enter the name or letter(s), then press  
or . If the name or letter(s) you entered are not  
stored in memory, the phone displays NAME NOT  
FOUND, then it displays the next name in sequence.  
MENU  
To find a specific name stored in memory, press  
OK  
OK  
then  
. FIND NAME appears. Press  
again,  
then enter the name and press  
To dial a displayed number, press  
or  
.
SEND  
.
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MOVING A NUMBER TO A  
DIFFERENT MEMORY LOCATION  
1. Display the name or number from memory and  
OK  
press  
.
2. When the phone prompts SAVE AT LOCA-  
TION?, enter the new location number then  
OK  
press  
. The phone displays MOVE?  
OK  
3. Press  
to move the number (the phone dis-  
plays MOVED and the remaining available  
CLR  
memory), or press  
to exit without moving  
the number.  
EDITING A STORED NAME OR  
NUMBER  
Follow these steps to edit a stored number and  
name in memory.  
1. Display the name or number from memory and  
OK  
press  
2. Press  
3. Press  
.
OK  
MENU  
then  
or  
.
until EDITNAMEORNUMBER  
OK  
appears and press  
.
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CLR  
To edit the name, press  
ters and press or  
enter new characters.  
to delete charac-  
to move the cursor and  
ABC  
To edit the number, press  
. The current  
CLR  
number appears. Press  
to delete charac-  
ters and press  
or  
to move the cursor and  
enter new characters.  
OK  
4. Press  
cation.  
. SAVE IN LOCATION XX? ap-  
OK  
pears. Press  
to store the number in that lo-  
If you did not change the name or the name you  
entered matches one already stored, RE-  
OK  
PLACE?appears. Press  
.
CLEARING MEMORY  
LOCATIONS  
OK  
MENU  
1. Press  
then  
.
2. Press  
or  
until ERASE FROM PHONE  
OK  
BOOKappears, then press  
.
3. Press or  
to move the pointer to Oneby  
one(to clear one memory location) or Erase  
all(to clear all memory locations) then press  
OK  
.
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Note: Erase functions cannot be undone, so be  
careful!  
4. If you selected Onebyone, enter the name or  
memory location number to be erased or press  
or  
to scroll through the list.  
Note: If you have stored phone numbers with-  
ABC  
out corresponding names, press  
phone numbers.  
to view the  
If you selected Eraseall, AREYOUSURE?  
appears.  
OK  
5. Press  
to erase the selected (or all) memory  
CLR  
END  
locations. Or, press  
erasing any information.  
or  
to exit without  
USING SCRATCHPAD MEMORY  
Your phone’s scratchpad memory lets you tempo-  
rarily store a phone number at any time. This is use-  
ful, for example, when you don’t have a pencil and  
paper handy!  
Follow these steps to store a number in the scratch-  
pad memory.  
1. Enter the phone number and name, then press  
OK  
.
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2. When SAVEINLOCATION?appears, press #  
to choose the scratchpad memory, then press  
OK  
.
#
To recall the scratchpad memory, press  
or  
phone displays LOCATIONEMPTY.)  
then  
. (If the scratchpad memory is empty, the  
To dial the number stored in scratchpad memory,  
SEND  
recall it, then press  
.
To quickly copy a number from the scratchpad  
memory to the first empty speed-dial memory, recall  
OK  
the scratchpad memory, then press  
twice (see  
“Using Number Quick Store” on Page 70).  
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ACCESSORIES  
A new, extensive range of accessories is available  
for your phone through your local RadioShack store.  
You can select the accessories that best meet your  
needs.  
Important:  
Use only accessories approved by the  
phone manufacturer. Using any other type invali-  
dates any approval or warranty applying to the  
phone, and might be dangerous.  
Here are a few practical rules for accessory opera-  
tion:  
• Keep the accessories out of the reach of chil-  
dren.  
• When you disconnect any accessory’s power  
cord, pull the plug, not the cord.  
• Regularly check all cellular phone equipment in  
your vehicle to be sure it is mounted and oper-  
ating properly.  
• Have only qualified personnel install complex  
car accessories.  
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17-1105.fm Page 77 Wednesday, July 21, 1999 11:06 AM  
SAFETY INFORMATION  
TRAFFIC SAFETY  
• Do not use a handheld phone while driving a  
vehicle. If using a handheld phone, park the ve-  
hicle before taking or making a call.  
• Always secure the phone in its holder; do not  
place the phone on the passenger seat or  
where it can break loose in a collision or sud-  
den stop.  
• Never use a phone alert device that operates  
your vehicle’s lights or horn. This is illegal in  
most areas.  
Remember, always put road safety first!  
OPERATING ENVIRONMENT  
• Remember to follow all special regulations and  
always turn off your phone whenever you are  
required to do so, or when it might cause inter-  
ference or be dangerous.  
• Any radio transmitting equipment, including cel-  
lular phones, might interfere with inadequately  
protected medical devices. Consult a physician  
or the manufacturer of the medical device if you  
have any questions. Other electronic equip-  
ment might also be subject to interference.  
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17-1105.fm Page 78 Wednesday, July 21, 1999 11:06 AM  
• As with other mobile radio transmitting equip-  
ment, for your safety, only use your phone in  
the normal operating position (held to your ear  
with the antenna pointing over your shoulder).  
• Turn off the phone while getting gasoline (at a  
filling station). Observe restrictions on the use  
of radio equipment in fuel depots (fuel storage  
and distribution areas), chemical plants, or  
around blasting operations.  
• Do not store or carry flammable liquids, gases,  
or explosive materials in the same compart-  
ment as a cellular phone or any of its parts or  
accessories.  
• Only qualified personnel should install or ser-  
vice the phone in a vehicle. Faulty installation or  
service might be dangerous and could invali-  
date the phone’s warranty.  
• Electronic fuel injection systems, electronic  
anti-lock braking systems, electronic cruise  
control systems, and other electronic systems  
can malfunction due to the lack of protection  
from radio signals. Check regularly that all cel-  
lular phone equipment in your vehicle is mount-  
ed and operating properly.  
• Turn off your cellular phone when in an aircraft.  
The use of cellular phones in an aircraft might  
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17-1105.fm Page 79 Wednesday, July 21, 1999 11:06 AM  
be dangerous to the operation of the aircraft,  
disrupts the cellular networks, and is illegal.  
Failure to observe these instructions could lead to  
suspension or denial of cellular telephone services,  
legal action, or both.  
EMERGENCY CALLS  
IMPORTANT!  
This phone, like any cellular phone,  
operates using radio signals, cellular, and land line  
networks, as well as user-programmed functions.  
These factors make it impossible to guarantee con-  
nection in all conditions. Therefore, you should nev-  
er rely solely upon any cellular phone for essential  
communications (such as medical emergencies).  
Remember, to make or receive any calls, the phone  
must be turned on and in a service area with ade-  
quate cellular signal strength.  
You might not be able to make emergency calls on  
all cellular phone networks or when certain network  
services or phone features are set. Check with your  
local service providers.  
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FCC REGULATIONS  
A cellular phone might cause TV or radio interfer-  
ence, even when it is operating normally. The FCC  
can require you to stop using your cellular phone if  
you cannot eliminate the interference. If you require  
assistance, contact your local RadioShack store.  
This device complies with Parts 15 and 68 of FCC  
Rules. Operation is subject to the condition that this  
device does not cause harmful interference.  
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TROUBLESHOOTING  
If the power does not come on or stay on:  
• Make sure the battery is properly installed and  
charged.  
• Be sure the contacts on the battery and the  
charging stand are clean. If they are not, clean  
them with a soft cloth or pencil eraser.  
• The battery charge might be too low for opera-  
tion. Check the display and listen for the low  
battery warning tone.  
If the power comes on, but the phone does not  
work:  
• Make sure the antenna is properly installed and  
extended to its full length.  
• Check to see if there is an error message on  
the display after turning it on. If so, contact your  
local RadioShack store for assistance.  
If the phone displays  
NOSERVICE:  
• You are out of the cellular service area and you  
cannot make calls.  
• You have chosen Home Only (see “Setting the  
Cellular System Type” on Page 41) and you  
have left your Home system.  
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CARE AND MAINTENANCE  
Your RadioShack CT-600 Lightweight Flip-Style 75-  
Memory Cellular Phone is an example of superior  
design and craftsmanship and should be treated  
with care. These suggestions allow you to enjoy this  
phone for many years.  
• Keep the phone and all its parts and accesso-  
ries out of the reach of children.  
• Keep the phone dry. Precipitation, humidity and  
liquids might contain minerals that corrode elec-  
tronic circuits.  
• Do not use or store the phone in dusty, dirty ar-  
eas. Its moving parts can be damaged.  
• Do not store the phone in hot areas. Tempera-  
ture extremes can shorten the life of electronic  
devices, damage batteries, and warp or melt  
plastic parts.  
• Do not store the phone in cold areas. When the  
phone warms up (to its normal operating tem-  
perature), moisture can form inside the phone,  
which could damage the phone’s electronic cir-  
cuits.  
• Do not attempt to open the phone. Non-expert  
handling of the phone can damage it.  
• Do not drop, knock, or shake the phone. Rough  
handling can break internal circuit boards.  
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• Do not use harsh chemicals, cleaning solvents,  
or strong detergents to clean the phone. Wipe it  
with a soft cloth slightly dampened in a mild  
soap and water solution.  
Modifying or tampering with your phone’s internal  
components could violate its warranty and void your  
FCC authorization to use it. If the phone or any of its  
accessories are not working properly, take them to  
your local RadioShack store for assistance.  
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SPECIFICATIONS  
Dimensions (HWD) ........... 69/16 × 17/8 × 15/16 Inches  
(16.6 × 4.6 × 3.4 cm)  
Weight (with Supplied Battery) ...................... 6.7 oz  
(190 g)  
Transmitting Power .............. 0.6 W (+2 dB –4 dB)  
Operating Voltage ...................................... 3.6V DC  
12V DC for car kit  
Frequency Band ......... 824.040–848.970 MHz (TX)  
869.040–893.970 MHz (RX)  
Number of Channels ........................................ 832  
Memory Locations ............................ 75 Speed Dial  
1 Scratchpad  
Memory Capacity .......... 32 numbers and 30 letters  
(per memory location)  
Specifications are typical; individual units might  
vary. Specifications are subject to change and im-  
provement without notice.  
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NOTES  
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Limited One-Year Warranty  
This product is warranted by RadioShack against manufacturing  
defects in material and workmanship under normal use for one (1)  
year from the date of purchase from RadioShack company-owned  
stores and authorized RadioShack franchisees and dealers. EX-  
CEPT AS PROVIDED HEREIN, RadioShack MAKES NO EX-  
PRESS WARRANTIES AND ANY IMPLIED WARRANTIES,  
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS  
FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION  
TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, Ra-  
dioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO  
CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DI-  
RECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE  
PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES  
RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA,  
PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPE-  
CIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF  
RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF  
SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied  
warranty lasts or the exclusion of incidental or consequential dam-  
ages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the  
product and the RadioShack sales receipt as proof of purchase  
date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product re-  
pair without charge for parts and labor; (b) replace the product with  
one of the same or similar design; or (c) refund the purchase price.  
All replaced parts and products, and products on which a refund is  
made, become the property of RadioShack. New or reconditioned  
parts and products may be used in the performance of warranty  
service Repaired
 
or replaced parts and products are warranted for  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
1/98  
Printed in Canada  
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17-1105.fm Page 88 Wednesday, July 21, 1999 11:06 AM  
(Continued) This warranty does not cover: (a) damage or failure  
caused by or attributable to acts of God, abuse, accident, misuse,  
improper or abnormal usage, failure to follow instructions, improper  
installation or maintenance, alteration, lightning or other incidence  
of excess voltage or current; (b) any repairs other than those pro-  
vided by a RadioShack Authorized Service Facility; (c) consum-  
ables such as fuses or batteries; (d) cosmetic damage; (e)  
transportation, shipping or insurance costs; or (f) costs of product  
removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also  
have other rights which vary from state to state.  
RadioShack Customer Relations, Dept. W, 100 Throckmorton St.,  
Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
88  
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