Radio Shack CT-400 User Manual

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17-1101.fmPage 1 Wednesday, July 21, 1999 9:57 AM

Cat. No. 17-1101

OWNER’S MANUAL

Please read before using this equipment.

CT-400

Handheld Cellular Phone

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FEATURES

Your RadioShack CT-400Handheld Cellular Phone combines advanced technology and design simplicity. To complement its small size and easy-to-usedesign, theCT-400provides a full range of features.

Easy-to-ReadDigital Display— the supertwist liquid-crystal display provides essential call information and can be easily read from almost any angle.

Special Cellular Service Features — the phone is preprogrammed to work with special (subscriptiononly) messaging services offered by many cellular carriers, including calling line ID and voice mail notification.

One-TouchDialing Memory— lets you dial an important number at the touch of a single button.

Memory Dialing — lets you store up to 40 phone numbers and names in memory, and dial any stored number by simply entering its oneor twodigit memory number(1–40).

Call Register Lists — let you quickly review and redial any of the last 10 numbers that you called, and (if you subscribe to the appropriate cellular services) the numbers for any of the last 10 calls you missed or received.

Keyguard — helps prevent accidental key presses when the phone is in a pocket or bag, for example.

© 1997 Tandy Corporation.

All Rights Reserved.

RadioShack is a registered trademark used by Tandy Corporation.

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Security Features — to prevent unauthorized phone use, you can set up to three different levels of call restrictions (to allow only incoming calls, for example) while still allowing calls to the preprogrammed emergency number.

One-TouchEmergency Dialing— lets you dial the emergency number preprogrammed into your phone, by briefly holding down the 9WXYZ key.

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 battery (fully charged) provides about 1 hour, 40 minutes of talk time or 21 hours of standby time.

Silent Service — lets you set the phone to quietly beep instead of ring when it receives a call, to avoid disturbing others.

Call Timers — let you keep track of the individual and cumulative call times(air-time),and includes a timer that you can reset at any time.

Two Phone Number Capability — lets you use this one phone with two different cellular services, with a different phone number from each.

We recommend you record your phone’s Electronic Serial Number (ESN) here. The number is on the handset under the battery.

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CONTENTS

A Look at the Display ........................................

6

Preparation ........................................................

8

Installing the Battery .....................................

8

Important Battery Tips ..................................

8

Charging the Battery ..................................

10

When to Recharge the Battery ............

11

Discharging Batteries .................................

12

Basic Operation ...............................................

13

Turning the Phone On/Off ..........................

13

Making a Call .............................................

13

Signal Strength ...................................

14

Receiving a Call .........................................

15

Adjusting the Volume .................................

16

Making Emergency Calls ...........................

16

Last 10 Number Redial ..............................

18

Menu Overview ................................................

19

Security Features ............................................

21

Selecting a Call Restriction Level ...............

21

Turning One-TouchEmergency

 

Dialing On/Off .............................................

23

Turning Keyguard On/Off ...........................

24

Cellular Systems .............................................

25

Selecting the Active Phone Number ..........

25

Setting the Cellular System Type ...............

26

Roaming .....................................................

28

SID Screening ............................................

29

Special Phone Services .............................

31

Calling Line ID ....................................

31

Message Waiting ................................

31

Other Services ....................................

32

Special Features ..............................................

33

Call Timers .................................................

33

4

 

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Backlight Control ........................................

34

Keypad Tones ............................................

35

Ring Volume ..............................................

36

Ring Type ...................................................

37

Changing the Lock Code ...........................

37

Using the Call Register ..............................

39

Clearing the Call Lists .........................

40

Using Calling Card Dialing .........................

41

Storing/Clearing a Calling

 

Card Number ......................................

41

Using a Stored Calling

 

Card Number ......................................

43

Using Touch-ToneServices .......................

44

Adding a Pause ..................................

45

Adding a Wait .....................................

45

PIN Code Dialing .......................................

46

Memory Features ............................................

48

Storing a Number and Name in Memory ...

48

Using Number Quick Store .................

51

One-Touch/SpeedDialing ..........................

51

Memory Scrolling .......................................

52

Clearing a Memory .....................................

52

Using Scratchpad Memory .........................

54

Accessories .....................................................

55

Safety Information ...........................................

56

Traffic Safety ..............................................

56

Operating Environment ..............................

56

Emergency Calls ........................................

58

FCC Regulations ........................................

58

Troubleshooting ..............................................

59

Care and Maintenance ....................................

60

Specifications ..................................................

61

 

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A LOOK AT THE DISPLAY

AB

ABC

Indicates the type of network selected:

A ....................

A system only

B ....................

B system only

AB ..................

Both systems

No Indicator .....

Home area only

See “Setting the Cellular System Type” on Page 26.

Appears when you have a message waiting in your voice mailbox.

See “Message Waiting” on Page 31.

C

Appears when you press AB to enter letters.

See “Storing a Number and Name in Memory” on Page 48.

MENU

Appears when you press MENU to select

 

a menu function.

 

See “Menu Overview” on Page 19.

Indicates the number of a selected menu function or memory.

See “Menu Overview” on Page 19 or “Memory Features” on Page 48.

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ON

 

Appears when the phone is on.

 

 

 

See “Turning the Phone On/Off” on

 

 

 

Page 13.

 

 

 

Appears when you roam using your

ROAM

 

 

 

home system. Flashes when you roam

 

 

 

using a non-homesystem.

 

 

 

See “Roaming” on Page 28.

IN USE

 

Appears during a call.

 

 

 

See “Making a Call” on Page 13 or

 

 

 

“Receiving a Call” on Page 15.

 

 

Appears when you are not within a

NO SVC

 

 

 

supported cellular service area.

 

 

 

See “Setting the Cellular System

 

 

 

Type” on Page 26.

 

 

 

 

flashes when SID screening is set

 

 

 

NO

 

 

 

to on and service is not available (see

 

 

 

“SID Screening” on Page 29).

 

 

 

Indicates the cellular signal strength.

 

 

 

The higher the bar, the stronger the

 

 

 

signal.

 

 

 

See “Signal Strength” on Page 14.

 

 

 

Indicates the battery charge level. The

 

 

 

higher the bar, the more charge left in

 

 

 

the battery.

 

 

 

See “When to Recharge the Battery”

 

 

 

on Page 11.

 

 

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PREPARATION

INSTALLING THE BATTERY

To install the battery, place

Tab

it flat against the back of

 

the phone with the tab fac-

 

ing up and toward the top

 

of the phone. Then slide

 

the battery toward the top

 

of the phone until it snaps

 

into place.

 

To remove the battery, be sure the phone is turned off, then hold down the tab, slide the battery down, and lift it off the phone.

IMPORTANT BATTERY TIPS

You must fully charge a new battery at least 24 hours before you first use it. See “Charging the Battery” on Page 10.

Use only the supplied charger and use only batteries recommended for this phone.

A new battery’s full performance is achieved only after two or three complete charge and discharge cycles.

When you are not using the charger, disconnect it from power. Do not leave the charger connected for more than a week, since overcharging could shorten the battery’s life.

If left unused, a fully charged battery discharges itself in about a week.

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When the battery is not in use, store it uncharged in a cool and dark place.

The battery is a sealed unit with no serviceable parts. Do not try to open the case.

You can purchase additional standard or extended capacity batteries through your local RadioShack store.

A battery can be charged and discharged hundreds 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.

Leaving the battery in a hot or cold place, such as in a closed car in the summer or winter, reduces the battery’s capacity and life. Always try to keep the battery between 59° and 77°F (15° and 25°C). A phone with a battery that is too hot or too cold might not work, even when the battery is fully charged, until the battery returns to a normal temperature. Nickel metal hydride (NiMH) batteries are particularly limited in temperatures below 14°F (–10°C).

Use the battery only for its intended purpose.

Never use any charger or battery that is damaged or worn out.

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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 carry a spare battery in your pocket or purse. Short circuiting the terminals might damage the battery 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

NiCd not be disposed of in municipalNiMH waste.

CHARGING THE BATTERY

Once you install the battery on the phone, follow these steps to charge the battery using the supplied charger.

1. Insert the charger’s barrel plug into the jack on the bottom of the phone.

2.Connect the charger’s AC plug to a standard AC outlet. The phone beeps and its battery charge bar appears and begins to scroll.

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Notes:

You can use your phone during charging, but charging takes longer.

For the fastest charging, be sure the phone is turned off, if you are not expecting a call.

If the battery is too hot or cold, charging stops until the battery temperature returns to normal.

3.The battery charge bar stops scrolling when the battery is fully charged. Disconnect the charger from the AC outlet first, then disconnect it from the phone.

Using the supplied battery (fully charged), you have about 1 hour, 40 minutes of talk time or 21 hours of standby time.

When to Recharge the Battery

Your phone displays the battery charge bar whenever 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.

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You can recharge the battery (as described in “Charging the Battery” on Page 10) at any time. However, when your phone gives you these lowbattery 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 BATTERY LOW at regular intervals.

When the battery charge level is too low for the phone to operate, the phone displays RECHARGE BATTERY and sounds a warning tone. The phone automatically turns off about 10 seconds later.

Note: The phone doesnot sound low battery warning tones if silent service is set to ON (see “Ring Type” on Page 37).

DISCHARGING BATTERIES

Rechargeable batteries last longer and perform better if occasionally allowed to fully discharge. You can do this by leaving the phone on until the phone automatically turns off or you can use the battery discharge feature of any approved accessory available for your phone.

Do not try to discharge the battery by any other means.

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BASIC OPERATION

TURNING THE PHONE ON/OFF

Note: Extend the antenna fully. Avoid touching the antenna with the phone turned on.

The phone must be turned on before you can make or answer calls. To turn on the phone, hold down

P

W (above and to the upper right of the display) un-

R

til the phone beeps. The phone performs a short self-test,then it briefly displays the activated phone number (see “Selecting the Active Phone Number” on Page 25). The phone is ready to use when the signal strength and battery charge bars appear.

P

To turn off the phone, hold down W until the

R

phone beeps.

MAKING A CALL

1.Use the number keys to enter the phone number you want to dial. Include the area code, if necessary.

Note: If you make a mistake, repeatedly press

CLR

CLR

to delete digits one at a time, or hold down to clear all digits.

2.Press SEND to dial the phone number. The phone displaysIN USE and the phone number you dialed.

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Notes:

PIN CALL appears if PIN code dialing is set to ON (see “PIN Code Dialing” on Page 46).

NO SVC (no service) appears and three beeps sound if you are outside the cellular service area. See “Signal Strength.”

NOT ALLOWED briefly appears if you try to make a restricted call (see “Selecting a Call Restriction Level” on Page 21).

3.To end the call, press END .

Signal Strength

The vertical bar on the left of the 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 NO SVC appears, the phone is outside the cellular service area. This means you cannot make or receive calls until you move the phone back inside the cellular service area.

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RECEIVING A CALL

When the phone receives an incoming call, it rings and flashes CALL. To answer a call, press any key

except

P

R .

 

W

Notes:

After the first ring, if you subscribe to calling line ID service through your cellular carrier (see “Calling Line ID” on Page 31), the phone automatically displays the calling party’s phone number. The phone will also display the caller’s name if the name and number are programmed into your phone (see “Storing a Number and Name in Memory” on Page 48).

If you selected silent service (see “Ring Volume” on Page 36), the phone does not ring. Instead, the keypad and display backlights flash, CALL flashes on the display (or caller information appears), and the phone beeps once.

If keyguard is set to ON (see “Turning Keyguard On/Off” on Page 24), you can answer a call only by pressing SEND .

To end the call, press END . To clear calling line ID information from the display (if any), pressCLR .

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If you do not answer a call, the phone displays NN CALLS MISSED (where NN is the number of calls)

P

until you press any key (except W ). It also stores

R

the caller’s number (if available) in the missed call register. See “Using the Call Register” on Page 39.

Hint: To quickly store the displayed caller’s number (if available) into the first emptyspeed-dialmemory, hold downOK for about 2 seconds (see “Using Number Quick Store” on Page 51).

ADJUSTING THE VOLUME

To increase or decrease the earpiece volume during a call, press (to increase) or(to decrease).

The phone displays VOLUME and a horizontal bar indicating the volume level. The more filled bar segments, the higher the volume.

MAKING EMERGENCY CALLS

The primary local emergency number (such as 911) is programmed into your phone at the time of activation. To prevent unwanted emergency calls, however, your phone’s one-touchemergency dialing feature is preset to OFF. To set it to ON, see “TurningOne-TouchEmergency Dialing On/Off” on Page 23.

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To quickly dial the emergency number, hold down

9WXYZ until the phone displaysEMERG. CALL TRY.

Notes:

The emergency number programmed into your phone might not be valid in all areas. (For example, 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 programmed into your phone.

One-touchemergency dialing does not operate if keyguard is turned on (see “Turning Keyguard On/Off” on Page 24) or ifone-touchemergency 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.

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LAST 10 NUMBER REDIAL

Follow these steps to view and dial the last 10 phone numbers called.

1.Hold down CLR to clear the display (if necessary).

2.Press SEND . The phone displays the last number dialed.

3.To scroll through the last 10 numbers dialed, repeatedly press or. As you press the key, the phone displays the phone number and its corresponding redial memory number(L0–L9).

Note: If no number is stored in a redial memory, the phone briefly displaysLOCATION EMPTY.

4.To dial a displayed number, press SEND again.

Hint: To quickly store one of the last 10 numbers you dialed into the first emptyspeed-dialmemory, recall that number, then hold downOK for about 2 seconds (see “Using Number Quick Store” on Page 51).

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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 function’s shortcut keys (if any).

To scroll forward or backward through all menu functions, press MENU then (forward) or (backward). Press OK to select a displayed function.

You See

Shortcut/Description

See

Pg.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STORE TO

MENU

1

 

48

 

 

MEMORY

Stores names and phone

 

 

numbers

 

FIND

MENU

2

ABC

52

 

 

NAME

Recalls names and phone

 

numbers

 

 

 

 

 

 

 

ERASE

MENU

3 DEF

52

NAME

Erases names and phone

 

numbers

 

 

 

 

 

 

 

 

RESTRICT

MENU

4 GHI

21

 

CALLS

Sets a call restriction level

 

 

 

 

 

 

 

 

 

 

SYSTEM

MENU

5 JKL

26

 

SELECT

Selects cellular system

 

type

 

 

 

 

 

 

 

 

 

 

 

CALL

MENU

6 MNO

33

TIMERS

Displays the length of calls

 

and resets the timers

 

 

 

 

 

 

 

 

 

 

 

 

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You See

Shortcut/Description

See

Pg.

 

 

LIGHTS

MENU

7

PQRS

34

 

Sets the display and key-

 

 

pad backlights

 

 

 

 

 

 

KEYPAD

MENU

8 TUV

35

TONES

Turns keypad tones on/off

 

 

 

 

 

 

RINGING

MENU

9

WXYZ

36

VOLUME

Selects the ring volume

 

 

 

 

 

 

RINGING

Selects the ring type

37

TYPE

 

 

 

 

 

 

 

 

 

EMERGENCY

Turns emergency one-

23

KEY 9

touch dialing on/off

 

 

 

 

 

 

NAM SELECT

Displays and selects the

25

 

active cellular number

 

 

 

 

 

 

CALLING

Selects and activates the

41

CARD

calling card option

 

 

 

 

 

 

CHANGE

Changes the 4-digitlock

37

LOCKCODE

code

 

 

 

 

 

 

 

 

SID SCREEN

Turns SID screening

29

 

on/off

 

 

 

CALL

Shows missed, received,

39

REGISTER

and dialed call lists

 

KEYGUARD

MENU

 

 

24

 

Turns keyguard on/off

 

20