Page 2 - FEATURES
2 FEATURES Your RadioShack CT-400 Handheld CellularPhone combines advanced technology and designsimplicity. To complement its small size and easy-to-use design, the CT-400 provides a full range offeatures. Easy-to-Read Digital Display — the supertwistliquid-crystal display provides essential call in...
Page 4 - CONTENTS
4 CONTENTS A Look at the Display ........................................ 6 Preparation ........................................................ 8 Installing the Battery ..................................... 8Important Battery Tips .................................. 8Charging the Battery ..............
Page 6 - See “Message Waiting” on Page 31.; MENU; See “Menu Overview” on Page 19.; ABC; A LOOK AT THE DISPLAY
6 AB 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 SystemType” on Page 26. Appears when you have a messagewaiting in your voice mailbox. ...
Page 7 - ON; Appears when the phone is on.; See “Roaming” on Page 28.; IN; Appears during a call.; See “Signal Strength” on Page 14.; ROAM
7 ON Appears when the phone is on. See “Turning the Phone On/Off” onPage 13. Appears when you roam using yourhome system. Flashes when you roamusing a non-home system. 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...
Page 8 - PREPARATION; INSTALLING THE BATTERY
8 PREPARATION INSTALLING THE BATTERY To install the battery, placeit flat against the back ofthe phone with the tab fac-ing up and toward the topof the phone. Then slidethe battery toward the topof the phone until it snapsinto place. To remove the battery, be sure the phone is turnedoff, then hold d...
Page 10 - CHARGING THE BATTERY; Insert the charger’s
10 • Do not short circuit the battery. Accidental short circuiting can occur when a metal object(coin, paper clip, pen, or similar) directly con-nects the battery’s + and – terminals (the met-al strips on the back of the battery), such aswhen you carry a spare battery in your pocketor purse. Short c...
Page 11 - When to Recharge the Battery
11 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 returnsto normal. 3. The battery charge bar s...
Page 12 - Note: The phone does; DISCHARGING BATTERIES
12 You can recharge the battery (as described in“Charging the Battery” on Page 10) at any time.However, when your phone gives you these low-battery indications, recharge the battery as soon aspossible: • When only a few minutes of talk time remain, the phone sounds a warning tone and displays BATTER...
Page 13 - BASIC OPERATION; TURNING THE PHONE ON/OFF; To turn off the phone, hold down; MAKING A CALL; Use the number keys to enter the phone num-; Note: If you make a mistake, repeatedly press; to dial the phone number. The
13 BASIC OPERATION TURNING THE PHONE ON/OFF Note: Extend the antenna fully. Avoid touching theantenna with the phone turned on. The phone must be turned on before you can makeor answer calls. To turn on the phone, hold down (above and to the upper right of the display) un- til the phone beeps. The p...
Page 14 - Signal Strength; If
14 Notes: • PIN CALL appears if PIN code dialing is set to ON (see “PIN Code Dialing” onPage 46). • (no service) appears and three beeps sound if you are outside the cellularservice area. See “Signal Strength.” • NOT ALLOWED briefly appears if you try to make a restricted call (see “Selecting a Call...
Page 15 - RECEIVING A CALL; CALL
15 RECEIVING A CALL When the phone receives an incoming call, it ringsand flashes CALL . To answer a call, press any key except . 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 phoneautomatically display...
Page 16 - If you do not answer a call; , the phone displays; NN; until you press any key (except; ADJUSTING THE VOLUME; The phone displays; VOLUME; MAKING EMERGENCY CALLS
16 If you do not answer a call , the phone displays NN CALLS MISSED (where NN is the number of calls) until you press any key (except ). It also stores the caller’s number (if available) in the missed callregister. See “Using the Call Register” on Page 39. Hint: To quickly store the displayed caller...
Page 17 - To quickly dial the emergency number; until the phone displays; • The emergency number programmed into your
17 To quickly dial the emergency number , hold down until the phone displays EMERG. CALL TRY . 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 youuse the phone outside its primary service area,you might have...
Page 18 - LAST 10 NUMBER REDIAL; To scroll through the last 10 numbers dialed,; LOCATION; for about 2
18 LAST 10 NUMBER REDIAL Follow these steps to view and dial the last 10phone numbers called. 1. Hold down to clear the display (if neces- sary). 2. Press . The phone displays the last num- ber dialed. 3. To scroll through the last 10 numbers dialed, repeatedly press or . As you press the key, the p...
Page 19 - MENU OVERVIEW; To select a specific menu function; then; You See
19 MENU OVERVIEW This section lists your phone’s menu functions, theshortcut keys (if any) you can use to access thefunctions, and the pages in this manual where youcan find full descriptions of the functions. To select a specific menu function , press that func- tion’s shortcut keys (if any). To sc...
Page 21 - SECURITY FEATURES; Restriction
21 SECURITY FEATURES SELECTING A CALL RESTRICTION LEVEL Your phone is preset to let you (or anyone else)dial any type of number (local or long distance) andfreely access any information stored in its memory.To prevent unauthorized use of your phone, how-ever, you can enter your 4-digit lock code (se...
Page 22 - regardless; CODE
22 Important: You can dial the pre-programmedemergency number and the number stored inMemory 40 regardless of which call restriction level you select. Follow these steps to select a call restriction level. 1. Press . The phone displays the cur- rent setting. 2. Repeatedly press or until you see the ...
Page 24 - TURNING KEYGUARD ON/OFF; To turn on keyguard
24 TURNING KEYGUARD ON/OFF You can use keyguard to disable the phone’s key-pad and prevent accidental key presses (when thephone is in a purse or pocket, for example). To turn on keyguard , press or hold down for about 2 seconds (this is handy when you are ending a call, for example). When keyguard ...
Page 25 - CELLULAR SYSTEMS; NAM
25 CELLULAR SYSTEMS SELECTING THE ACTIVE PHONE NUMBER Every cellular telephone has at least one NAM(Number Assignment Module), which is used tostore its phone number. Your phone has two NAMs. If you subscribe to twocellular services (for example, competitive cellularsystems in your area or cellular ...
Page 27 - either; Provider A or Provider B.
27 • Usually, it is less expensive to use the same provider type for cellular service when you arein your home city and when you roam. To dothis, you need to know whether your cellularservice provider is type A or B in your homecity and in each city where you plan to travel. • It is possible for a c...
Page 28 - ROAMING; ing
28 Follow these steps to set the cellular system type. 1. Press . The phone displays the cur- rent setting. 2. Repeatedly press or until you see the setting you want to use, then press to store that setting. ROAMING Using the phone in a city where you do not sub-scribe to a cellular service is refer...
Page 29 - SID SCREENING; only; • If SID screening is set to ON and the phone; SVC
29 SID SCREENING If two different cellular market areas are locatedclose to one another, a call designated for the A (orB) carrier in one market can sometimes be placedusing the A (or B) carrier located in the other mar-ket area. This can result in unwanted roaming andhigher charges. At the time of ...
Page 31 - SPECIAL PHONE SERVICES; Calling Line ID; for about 2 seconds; Message Waiting
31 SPECIAL PHONE SERVICES Calling Line ID If you subscribe to calling line identification servicewith your cellular carrier, your phone is preset toautomatically display the caller’s phone number (ifavailable) each time it receives a call. If you storedthe caller’s phone number with a name in thepho...
Page 32 - to notify you that you have one or more; Other Services
32 When your phone is turned on and receives voicemail notification from your cellular carrier, it dis-plays to notify you that you have one or more messages waiting in your mailbox. When you callyour mailbox and listen to your message(s), disappears. Hint: If you subscribe to voice mail service, yo...
Page 33 - SPECIAL FEATURES; CALL TIMERS; LAST; not; LIFE
33 SPECIAL FEATURES CALL TIMERS Your phone has four call timers that let you checkthe length of your calls in minutes and seconds (forexample, 12345:12 equals 12,345 minutes and 12seconds). You can view the timers at any time(even during a call), and you can reset all the calltimers (except one). No...
Page 34 - without; BACKLIGHT CONTROL
34 CLEAR TIMERS — Resets all call timers ex- cept for LIFE. 3. To clear the timers, press when the phone displays CLEAR TIMERS . The phone prompts you to enter your 4-digit lock code( LOCKCODE? ). Enter your lock code and press . The phone briefly displays TIMERS CLEARED to confirm that the timers h...
Page 35 - KEYPAD TONES; KEYTONES
35 When you select the setting LIGHTS ON: • and the phone is used as a portable phone or connected to a charger, the lights turn on for15 seconds when you press a key or receive acall. • and the phone is connected to a handsfree car kit, the lights remain on continuously. When you select the setting...
Page 36 - RING VOLUME
36 RING VOLUME You can select one of these three ring volumes forthe phone: • RINGING LOW — the ring is quiet. • RINGING HIGH — the ring is loud. • SILENT SERVICE — the phone does not ring. Instead, the keypad and display back-lights flash, CALL flashes on the display, and the phone sounds a short b...
Page 38 - Step 1 and enter the correct code.; CONFIRM; Enter the new lock code again, then press; STORED; appears briefly to confirm
38 2. Press . The phone prompts you for your 4- digit lock code ( LOCKCODE? ). 3. Enter your 4-digit lock code, then press . The phone prompts for the new lock code( NEW CODE? ). Note: If you enter the wrong lock code, thephone displays CODE ERROR . Start again at Step 1 and enter the correct code. ...
Page 39 - USING THE CALL REGISTER; Requires a subscription to calling line ID service
39 USING THE CALL REGISTER Your phone automatically stores calls in thesethree lists: • * MISSED CALLS — lists the caller’s phone number for up to the last 10 calls you did notanswer • DIALED CALLS — lists the phone number di- aled for up to the last 10 calls made from thisphone • * RECEIVED CALLS —...
Page 40 - Clearing the Call Lists; all; CLEAR
40 To quickly store the displayed number into thefirst empty speed-dial memory , hold down for about 2 seconds (see “Using NumberQuick Store” on Page 51). Note: If a list is empty, the phone briefly dis-plays LOCATION EMPTY then clears the dis- play. 4. When you finish, hold down to exit the list an...
Page 41 - USING CALLING CARD DIALING; CALLING
41 USING CALLING CARD DIALING Storing/Clearing a Calling Card Number The calling card feature lets you store a long-distance calling card number in the phone’s memo-ry, so you can place long-distance calls from thisphone using that number. Follow these steps to select a calling card type andenter yo...
Page 42 - If you must dial a number (such as an 800; CARD; Card Type; at; ACCESS; MCI
42 The phone prompts you for that carrier’s net-work access number ( ACCESS NUMBER? ). 5. If you must dial a number (such as an 800 number) to access the carrier, enter that num-ber. Then press . (If you do not have to dial an access number, simply press .) The phone prompts you for the card number(...
Page 43 - Using a Stored Calling Card Number
43 Note: To exit without changing the calling cardsettings (if you are changing only the accessnumber, for example), press . 6. Enter the card number, then press . The phone briefly displays STORED to confirm that the selected card information is activatedand stored. To clear a stored calling card n...
Page 44 - USING TOUCH-TONE SERVICES
44 2. When you hear the carrier’s calling card tone or voice prompt, press . CARD CALL ap- pears on the display, then the phone promptsyou to wait for another tone or voice prompt( WAIT FOR PROMPT ). 3. When you hear the next tone or prompt (if any), press again, then continue with the call as you n...
Page 46 - PIN CODE DIALING; • This service is not required (or available) on all; To store your PIN code in the phone’s memory; PIN
46 PIN CODE DIALING For security, some cellular service carriers requireyou to dial a personal identification number (PIN) inaddition to the phone number each time you placea call. This is sometimes referred to as “PIN codedialing.” Notes: • This service is not required (or available) on all network...
Page 48 - MEMORY FEATURES; NOT
48 MEMORY FEATURES STORING A NUMBER AND NAME IN MEMORY Your phone has 40 speed-dial memory locations.Each location can hold a phone number of up to 32digits and a name of up to 16 characters. Follow these steps to store a phone number andname in memory. Note: If you do not press a key for about 15 s...
Page 49 - STORE TO; To store the number in a different memory
49 Notes: • Within about 2 seconds after you stop pressing a key, the cursor automaticallymoves to the next position. To move it soon-er, press . • If you make a mistake, press to erase each wrong letter, then try again. • Press to enter a space or to en- ter punctuation ( – , & , . , and : ). 3...
Page 51 - Using Number Quick Store; To speed dial the number stored in Memory 1
51 level, store a frequently called telephone num-ber (such as your home number or some other“priority” number) in memory location 40. Using Number Quick Store To quickly store a phone number in the first unusedspeed-dial memory, enter the phone number, thenhold down for about 2 seconds. The phone b...
Page 52 - MEMORY SCROLLING; To begin scrolling from a specific memory number; CLEARING A MEMORY
52 MEMORY SCROLLING To scroll forward or backward through all names ornumbers stored in memory (beginning with the first or last memory location), press (if you want to view names), then repeatedly press (forward) or (backward). The phone displays the stored name or phone number and its correspondin...
Page 54 - USING SCRATCHPAD MEMORY; during; STORE; To recall the scratchpad memory; To dial the number stored in scratchpad memory
54 USING SCRATCHPAD MEMORY Your phone’s scratchpad memory lets you tempo-rarily store a phone number during a call. This is useful, for example, when you don’t have a penciland paper handy! Follow these steps to store anumber in the scratchpad memory. 1. Be sure the display is clear, then enter the ...
Page 55 - ACCESSORIES; • Keep the accessories out of the reach of chil-
55 ACCESSORIES A new, extensive range of accessories is availablefor your phone through your local RadioShackstore. You can select the accessories that bestmeet your needs. Important: Use only accessories approved by thephone manufacturer. Using any other type invali-dates any approval or warranty a...
Page 56 - SAFETY INFORMATION; TRAFFIC SAFETY
56 SAFETY INFORMATION TRAFFIC SAFETY • Do not use a handheld phone while driving a vehicle. If using a handheld phone, park thevehicle before taking or making a call. • Always secure the phone in its holder; do not place the phone on the passenger seat orwhere it can break loose in a collision or su...
Page 58 - This device complies with Parts 15 and 68 of; FCC; . Operation is subject to the condition that
58 EMERGENCY CALLS IMPORTANT! This phone, like any cellular phone,operates using radio signals, cellular, and land linenetworks, as well as user-programmed functions.These factors make it impossible to guarantee con-nection in all conditions. Therefore, you shouldnever rely solely upon any cellular ...
Page 59 - TROUBLESHOOTING; If the power does not come on or stay on:; • Make sure the battery is properly installed and
59 TROUBLESHOOTING If the power does not come on or stay on: • Make sure the battery is properly installed and charged. • Be sure that 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 fo...
Page 60 - CARE AND MAINTENANCE
60 CARE AND MAINTENANCE Your RadioShack CT-400 Handheld Cellular Phone is anexample of superior design and craftsmanship andshould be treated with care. These suggestions allow youto enjoy this phone for many years. • Keep the phone and all its parts and accessories out of the reach of children. • K...
Page 61 - SPECIFICATIONS; with Supplied Battery
61 SPECIFICATIONS Dimensions ........................ Width: 2 1 / 8 in (54 mm) Height (without antenna): 6 in (152.4 mm) Depth: 1 7 / 16 in (37 mm) Weight ............................................ 7.6 oz. (215 g) with Supplied Battery Transmitting Power .............. 0.6 W (+2 dB –4 dB) Operati...
Page 62 - NOTES
62 NOTES 17-1101.fm Page 62 Wednesday, July 21, 1999 9:57 AM