Radio Shack 43-3821 User Manual

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10 Number Memory Dialing — stores 10 numbers in memory for easy dialing. See “Memory Dialing” on Page 15.

Long Battery Life — the supplied battery pack (when fully charged) provides about 7 hours of talk time or 14 days of standby time. See “Connecting, Charging and Replacing the Battery Pack” on Page 10.

20 Channels — automatically selects a clear channel when you make or answer a call. You can also manually change channels during a call. See “Selecting the Channel” on Page 13.

Headset Jack — connects an optional headset (available at your local RadioShack store) forhands-freeconvenience. See “Using a Headset” on Page 14.

Toll-Saver — lets you avoid unnecessary charges when you call by long distance to check your messages. See “Using theToll-Saver”on Page 24.

Thank you for purchasing a RadioShack 2.4 GHz Cordless Telephone. Your telephone uses the 2.4 GHz band for less interference. Its headset jack lets you connect an optional handset for handsfree convenience.

The digital answering system provides clear reliable messaging with call screening, day/time stamp, call counter, remote access and instant skip or replay messaging.


© 2002 RadioShack Corporation.

All Rights Reserved.

RadioShack and are trademarks used by RadioShack Corporation.

Know to You Wants FCC The

WARNING: To reduce the risk of fire or shock hazard, do not expose this product to rain or moisture.














The lightning symbol is intended to alert you to the presence of uninsulated dangerous voltage within this product’s enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product’s case.

The exclamation symbol is intended to inform you that important operating and maintenance

!instructions are included in the literature accompanying this product.

As an ENERGYSTAR Partner, RadioShack Corporation has determined that this product meets the ENERGYSTAR guidelines for energy efficiency.


Some cordless telephones operate on frequencies that might cause interference to nearby TVs and VCRs. To minimize or prevent such interference, the base of the cordless telephone should not be placed near or on top of a TV or VCR.

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In the unlikely event that your phone causes problems on the phone line, the phone company can temporarily discontinue your service. If this happens, the phone company attempts to notify you in advance. If advance notice is not practical, the phone company notifies you as soon as possible and advises you of your right to file a complaint with the FCC.

Also, the phone company can make changes to its lines, equipment, operations, or procedures that could affect the operation of this telephone. The telephone company notifies you of these changes in advance, so you can take the necessary Steps to prevent interruption of your telephone service.

Your phone might cause TV or radio interference even when it is operating properly. To determine whether your phone is causing the interference, turn off your phone. If the interference goes away, your phone is causing it. Try to eliminate the interference by:

moving your phone away from the receiver

connecting your phone to an AC outlet that is on a different electrical circuit from the receiver

contacting your local RadioShack store for help

If you cannot eliminate the interference, the FCC requires that you stop using your phone. ±ý


Your telephone has built-inprotection circuits to reduce the risk of damage from surges in telephone line and power line current. These protection circuits meet or exceed the FCC requirements. However, lightning striking the telephone or power lines can damage your telephone.


Lightning damage is not common. Nevertheless, if you live in an area that has severe electrical storms, we suggest that you unplug your phone when storms approach to reduce the possibility of damage.

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Careful attention is devoted to quality standards in the manufacture of your telephone equipment, and safety is a major factor in its design. However, safety is also your responsibility.

When using your telephone equipment, always follow basic safety precautions to reduce the risk of fire, electric shock, and injury to persons. Read all the included safety and operating instructions before using your equipment. Follow them closely, and retain them for future reference.

Heed Warnings — Follow all warnings on the product and in the operating instructions.

Cleaning — Unplug this product from the wall outlet before cleaning. Use only a damp cloth for cleaning. Do not use liquid or aerosol cleaners.

Water and Moisture — Do not use this product near water (for example, near a bathtub, washbowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool).

Mounting Accessories — Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Follow the manufacturer's instructions for mounting, and use a recommended mounting accessory.


The FCC Wants You


to Know ............................


Lightning .......................




Safety Instructions ...........




Safety Instructions ...........


Read This Before


Installation ....................


Installation .......................


Mounting the Phone .....


Connecting, Charging and

Replacing the


Battery Pack ...............


Setting the


Dialing Mode ..............


Setting the Handset’s


Ringer Tone ................


Turning the Base’s Ringer

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


Telephone Operation .....


Making and


Receiving Calls ...........


Selecting the Channel


Adjusting the


Handset Volume .........


Using FLASH ..............


Using Redial ...............


Using Tone Services on a

Pulse Line ...................


Paging ........................


Using a Headset .........


Memory Dialing ..........


Answering System


Operation .......................


Using the


Menu Button ...............


Setting the Day/Time ..


Setting the


Number of Rings ........


Setting the


Record Time ...............




Important Safety Instructions


Instructions Safety Important


If an icon appears at the end of a paragraph, go to the box on that page with the corresponding icon for pertinent information.

— Warning

# — Important

. — Caution

°— Hint

± — Note



Setting the


Message Alert Tone ....


Selecting the


Outgoing Message .....


Recording/Deleting an


Outgoing Message .....


Setting the System to


Answer Calls ..............


Screening Calls ..........




Incoming Messages ...


Recording a Memo .....


Recording a


Conversation ..............


Playing Messages ......


Adjusting the


Volume .......................


Deleting Messages .....


Remote Operation ......




Remote Commands ...


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


Care ...............................


FCC Statement ..............


Ventilation — Slots and openings in the cabinet provide ventilation, ensure reliable operation, and protect from overheating. Do not block or cover these openings, and do not place the product on a bed, sofa, rug, or other similar surface. Do not place the product in abuilt-ininstallation such as a bookcase or rack unless it provides proper ventilation as specified by the manufacturer.

Heat — The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat.

Power Sources — Operate this product using only the power source indicated on its marking label. If you are not sure of your home's power type, consult your product dealer or local power company.

Polarization — This product is equipped with a polarized AC line plug (a plug having one blade wider than the other). This plug will fit in the power outlet only one way. This is a safety feature. If you cannot insert the plug fully into the outlet, try reversing the plug. If the plug still doesn't fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. If you need an extension, use a polarized cord.

Power-CordProtection— Route power-supply cords so they are not likely to be walked on or pinched by items placed on or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product.

Overloading — Do not overload wall outlets, extension cords, or integral convenience receptacles, as this can result in a risk of fire or electric shock.

Objects and Liquids — Never push objects of any kind into this product through openings, as they


may touch dangerous voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product.

Servicing — Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

Damage Requiring Service — Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions:

When the power-supplycord or plug is damaged.

If liquid has been spilled or objects have fallen into the product.

If the product has been exposed to rain or water.

If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal operation.

If the product has been dropped or damaged in any way.

When the product exhibits a distinct change in performance.

Lightning — Avoid using a telephone (other than a cordless type) during an electrical storm, as there might be a remote risk of electric shock from lightning.

Gas Leak — Do not use the telephone to report a gas leak in the vicinity of the leak.

Important Safety Instructions


Instructions Safety Battery


Cordless phones such as this one require AC power to operate. When the AC power is off, you cannot dial out or receive incoming calls using your phone. To be safe, you should also have a phone that does not need AC power to operate (not a cordless phone) so you can still make and receive calls if there is an AC power failure.

When AC power is lost, the phone loses the security access-protectioncode connection between the base and the handset. When power is restored, put the handset on the base briefly to restore this connection.

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To reduce the risk of fire or injury to persons, read and follow these instructions.

Use only the required size and type of batteries.

Do not dispose of batteries in a fire. They can explode. Check with local codes for possible special disposal instructions.

Do not open or mutilate batteries. Released electrolyte is corrosive, can cause damage to the eyes or skin, and can be toxic if swallowed.

Be careful when handling batteries in order not to short them with conducting materials such as rings, bracelets, and keys. The battery or conductor can overheat and cause burns.

Charge the batteries provided with or identified for use with this product only in accordance with the instructions and limitations specified in this manual.

Observe proper polarity orientation between the batteries and battery charger.

Do not mix old and new batteries in this product.

Do not mix batteries of different sizes or from different manufacturers in this product.



We have designed your phone to conform to federal regulations and you can connect it to most phone lines. However, each device that you connect to the telephone line draws power from the line. We refer to this power draw as the phone’s ringer


equivalence number, or REN. The REN is on the bottom of your phone.

If you use more than one phone or other device on the line, add up all the RENs. If the total is more than five (three in rural areas), your phones might not ring. If ringer operation is impaired, remove one of the devices from the line.

The digital answering system stores up to 16 minutes of messages on a computer chip and records each message’s day and time. This gives you advanced capabilities over tape-basedanswering machines:

You can delete individual messages and save the rest.

There are no tapes to bother with and no tape mechanisms to wear out.

The remote operation feature lets you operate your answering system from a touch-tonephone (or from a rotary phone with a pocket tone dialer).


Before using your phone, carefully peel the protective film off the display. The film protects the handset window during shipment and is not necessary for use.


You can place the phone on a desk or table, mount it on a standard wall plate, or directly on a wall. Choose a location that is:

near an AC outlet

near a modular telephone line jack

out of the way of normal activities





You must use a

!Class 2 power

source that supplies 9V DC and delivers at least 350 mA. Its center tip must be set to positive and its plug must fit the phone's DC IN 9V jack. The supplied adapter meets these specifications. Using an adapter that does not meet these specifications could damage the phone or the adapter.

Always connect the AC adapter to the phone before you connect it to AC power. When you finish, disconnect the adapter from AC power before you disconnect it from the phone.

away from electrical machinery, electrical appliances, metal walls or filing cabinets, wireless intercoms, alarms, and room monitors

away from other cordless phones

You can try different locations to see which provides the best performance. .#

Your telephone connects directly to a modular telephone line jack. If your telephone wiring does not have a modular jack, you can update the wiring yourself using jacks and adapters (available at your local RadioShack store or online at, or have the telephone company update the wiring for you. You must use compatible modular jacks that are compliant with Part 68 of FCC Rules. The USOC number of the jack to be installed is RJ11C (RJ11W for a wall plate).


1.Plug one end of the supplied long modular cord into the TEL LINE jack on the base’s back.

2.Plug the modular cord’s other end into a modular telephone line jack.

3.Insert the supplied AC adapter’s barrel plug into the DC IN 9V jack on the back.

4.Route the adapter’s cord through the strain relief slot on the base’s bottom.

5.Plug the adapter into a standard AC outlet.

6.Lift the base’s antenna to a vertical position.




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To mount the phone directly on a wall, you need two screws (not supplied) with heads that fit into the keyhole slots on the base. Drill two holes 315/16 inches apart. Thread a screw into each hole, letting the heads extend about1/8 inch.

1.Plug one end of the supplied modular cord (short for a wall plate, long for direct wall mounting) into the TEL LINE jack on the base’s back.

2.Insert the supplied AC adapter’s barrel plug into the DC IN 9V jack.

3.Route the adapter and modular cords through the base’s grooves.

4.For a wall plate,

plug the modular cord’s other end into the wall plate jack, then align the base’s keyhole slots with the wall plate studs and slide the base downward to secure it.

For direct wall



mounting, align the



base’s keyhole



slots with the



mounting screws



and slide the base



downward to



secure it.



5. Plug the adapter into a standard AC outlet.















Be sure the battery pack is







properly connected before




you try to charge it. The




CHARGE/IN USE indicator




lights when the handset is




on the base even if the




battery pack is not




connected properly.

















• If the phone does not





work, recharge the





battery pack. (The





battery power might be





too low for the display to










• If the battery pack





becomes weak during a





call, the handset beeps





about every 3 seconds





and TALK/BATT flashes.





When this happens, you





cannot make a call on





the phone until you





recharge the battery










• If the battery pack is





completely discharged





or the base loses power





while the handset is





away from it, place the





handset on the base to





reset the security










If it was the handset that





lost power, recharge the





battery pack.







6. Lift the base’s antenna to a vertical position.

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The phone comes with a rechargeable Ni-Cd(nickel-cadmium)battery pack installed in the handset, but not connected. Before using your phone, you must connect the battery pack, then charge it for about 24 hours.

1.Press down and slide off the battery pack compartment cover.

2.Lift the battery pack out of the compartment.

3.Plug the battery pack’s connector

into the socket in the compartment. The connector fits only one way.

4.Put the battery pack in the compartment.

5.Replace the cover.

To charge the battery pack, place the handset on the base, face up or down. The base’s CHARGE/IN USE indicator lights. #"

Recharge the battery pack when the handset beeps and TALK/BATT flashes. ±ý

When you first use the phone after charging or recharging the battery pack, the phone might not work and you might hear error beeps. If this happens, return the handset to the base for about 5 seconds to reset the security access-protectioncode.

Using a pencil eraser, clean the charging contacts on the handset and the base about once a month.