Radio Shack SYSTEM 933 User Manual

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Cat. No. 43-933


Please read before using this equipment.

System 933

79-Memory Caller ID with Call Waiting, Illuminator Backlight and Dial Back Page 2 Monday, August 16, 1999 2:59 PM

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





















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

This symbol is intended to inform you that important oper-

!ating and maintenance instructions are included in the literature accompanying this product.

©1998 Tandy Corporation. All Rights Reserved.

RadioShack is a registered trademark used by Tandy Corporation. Page 3 Monday, August 16, 1999 2:59 PM


Your RadioShack System 933 79-Memory Caller ID with Call Waiting, Illuminator Backlight and Dial Back is the latest in telephone technology. The system displays the caller’s telephone number (and name, if available in your area) and the current date and time, as provided by your local phone company to Caller ID service subscribers. (The date and time are set with your first incoming Caller ID call.)

The System 933 stores and displays up to 79 multiple (name and number) Caller ID records, and includes these features:

Easy Installation — the system easily connects to your telephone line so you can quickly begin using it.

Bright Illuminator Backlight — the display lights when you press any key, making it easy to view and change information even in a dimly lit area.

Call Summary — displays the number of new calls, total number of calls you received, the phone number, date and time you received the calls and the caller’s name.

Note: Check with your local phone company regarding name service availability.

New Call Indicator — flashes when you have at least one new call you have not reviewed.

VIP Call List — lets you save up to 20 important call records so they will not be deleted when you delete other calls from the system’s memory.

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Message Waiting — the system lets you know when you have a voice mail message waiting (if you subscribe to the message waiting service from your local phone company).

Record Scrolling — lets you easily look through all call records in Caller ID memory.

Trilingual Operation — lets you set the system to display messages in English, French, or Spanish.

Liquid Crystal Display — makes it easy to see caller information and the current time and date.

Contrast Control — lets you adjust the display contrast for the best readability.

Time and Date Display — displays the current time and date as provided to Caller ID service subscribers by your local telephone company.

Mounting Options — you can place the system on a desk, shelf, or table, or mount it on a wall.

Call Waiting — lets you know who is calling when you are talking on the phone.

Dial Back — lets you redial a telephone number in the Caller ID call record memory.

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Note: Your system requires four AAA batteries (not supplied) to protect its memory during a power outage.

This system has been tested and found to comply with all applicable ETL and FCC standards.

We recommend you record the system’s serial number here. The number is on the system’s bottom panel.

Serial Number: _________________________

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Important Information:

To use this system, you must be in an area where Caller ID service is available, and you must subscribe to the service.

Where Caller ID is offered, one or more of the following options are generally available:

Caller’s number only

Caller’s name only

Caller’s name and number

Your system displays the caller’s name only if that option is available in your area.

The actual number of Caller ID records your system will store depends on the amount of Caller ID information sent by the phone company.

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We have designed your system to conform to federal regulations, and you can connect it to most telephone lines. However, each system (and each device, such as a telephone or answering machine) that you connect to the telephone line draws power from the telephone line. We refer to this power draw as the device’s ringer equivalence number, or REN. The REN is on the bottom of the system.

If you use more than one telephone or other device on the line, add up all of the RENs. If the total is more than five, your telephone might not ring. In rural areas, a total REN of three might impair ringer operation. If ringer operation is impaired, remove a device from the line.

Your system complies with Part 68 of FCC Rules. You must, upon request, provide the FCC registration number and the REN to your telephone company. Both numbers are on the bottom of the system.

Note: You must not connect your system to:

Coin-operated systems

Party-line systems

Most electronic key telephone systems

In the unlikely event that your system causes problems on the phone line, the phone company can temporarily disconnect 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.

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

This equipment complies with the limits for a Class B digital device as specified in Part 15 of FCC Rules. These limits provide reasonable protection against radio and TV interference in a residential area. However, your equipment might cause TV or radio interference even when it is operating properly. To eliminate interference, you can try one or more of the following corrective measures:

Reorient or relocate the TV or radio’s receiving antenna

Increase the distance between the equipment and the radio or TV

Use outlets on different electrical circuits for the equipment and the radio or TV

Consult your local RadioShack store if the problem continues. Page 9 Monday, August 16, 1999 2:59 PM


Please add the contents

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You need four AAA batteries (not supplied) to protect the system’s memory during a power failure. For the longest operation and best performance, we recommend alkaline batteries, such as RadioShack Cat. No. 23-558.


Always use fresh batteries of the required size and recommended type.

Do not mix old and new batteries, different types of batteries (standard, alkaline, or rechargeable), or rechargeable batteries of different capacities.

Follow these steps to install batteries.


When you replace the batteries, do not press any buttons on the system after you remove the old batteries. Doing so could erase all stored information.

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When replacing the batteries, have fresh ones on hand before you begin. If you do not install the new batteries within about 2 minutes after removing the old ones, you will lose all the information stored in the system.

1.Make sure the system is unplugged from the telephone line and AC power.

2.If you are replacing the batteries, unplug both modular line cords from the back of the system.

3.Use a Phillips screwdriver to remove the screw in the battery compartment cover.

4.Slide the battery compartment


cover in the direction of the



arrow, then lift open the cover.



Caution: The battery compart-



ment cover is attached to the



system. Do not try to remove it






Put four fresh AAA batteries



into the compartment as indi-



cated by the polarity symbols


(+ and –) marked inside.



Close the cover and secure it



with the screw. If you are



replacing the batteries, recon-


nect the phone line, AC adapter, and the phone.


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