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Installing the Phone

Installing the Handset Battery

NOTE: You must connect the handset battery before use.

CAUTION: To reduce the risk of fire or personal injury, 

use only the Thomson Inc. approved Nickel-Cadmium 

(Ni-Cd) battery model 5-2459 that is compatible with 

this unit.

1. Locate battery and battery door which are packaged together inside a 

plastic bag and are separate from the handset.

2.  Locate the battery compartment on the back of the handset.
3.  Plug the battery pack cord into the jack inside  the compartment. 

NOTE: To ensure proper battery installation, the connector 

is keyed and can be inserted only one way.

4.  When finished, press the talk/end/call back button again to hang up.

NOTE : You may enter up to 32 pre-dial digits.

Redial

While the phone is 

ON (in TALK mode), press the redial button to redial the 

last number you dialed (up to 32 digits).
   

- OR -

While the phone is 

OFF (in standby mode), press the redial button and then 

the talk/end/call back button to redial the last number.

Flash

Use the flash/prog button to activate custom calling services such as call 

waiting, which are available through your local phone company.

TIP: Don’t use the talk/end/call back button to activate 

custom calling services such as call waiting, or you’ll hang 

up the phone.

Channel Button

While talking on the phone, it may be necessary for you to manually change 

the channel to improve reception and reduce noise or static on the line. 

Press and release the del/chan button to move to the next clear channel.

Exit

Press the *exit button to cancel any command you initiated.

Finding the Handset

This feature helps locate a misplaced handset.
Press the page button on the base. The handset beeps continuously for 

about 2 minutes until you press the talk/end/call back button on the handset 

or the page button on the base.

NOTE: You may still page the handset when the ringer is off.

Ringer Switch 

The ringer switch is located on the side of the handset, it has two positions, On  

and Off.

Volume

When the phone is 

ON (in TALK mode) press the Caller ID/vol (- or +) button 

to adjust the listening level. Choose from four volume settings. VOL 1 is the 

lowest volume and VOL 4 is the highest volume.

Mute

Use mute during a phone conversation to speak privately and off-line with a 

third party.
1.  Press the mute button. 

MUTE

 shows in the display. The party on the 

telephone will not hear you.

2.  Press the mute button when finished.

Caller ID (CID)

IMPORTANT: In order to use this unit’s Caller ID features, 

you must subscribe to either the standard Name/Number 

Caller ID Service or Call Waiting Caller ID Service. To 

know who is calling while you are on the phone, you must 

subscribe to Call Waiting Caller ID Service.

This unit receives and displays information transmitted by your local phone 

company. This information can include the phone number, date, and time; or 

the name, phone number, date, and time. 

2.  Plug one end of the telephone line cord into the TEL LINE jack on the 

bottom of the base and the other end into a modular jack.

3.  Plug the AC power converter into the electrical outlet and the DC 

connector into the jack on the bottom of the base.

4.  Place the handset in the base cradle. The charge/in use indicator turns 

on, verifying the battery is charging

.

5.  Allow the phone to charge for 16 hours prior to first use. If you don’t 

properly charge the phone, battery performance is compromised. 

CAUTION: Use only the 5-2677 (black) or 5-2728 (gray) 

power adaptor that came with this unit. Using other 

power adaptors may damage the unit.

NOTE : The phone is tone dial only and does not support pulse 

dial mode.

Wall Mounting

1.  Slip the mounting holes (on the back of the base) over the wall plate posts, 

and slide the unit down into place. (Wall plate not included.)

2.  Place the handset on the base cradle.

Base Layout

Equipment Approval Information

Your telephone equipment is approved for connection to the Public Switched 

Telephone Network and is in compliance with parts 15 and 68, FCC Rules and 

Regulations and the Technical Requirements for Telephone Terminal Equipment 

published by ACTA.
1  Notification to the Local Telephone Company

On the bottom of this equipment is a label indicating, among other information, the 

US number and Ringer Equivalence Number (REN) for the equipment. You must, 

upon request, provide this information to your telephone company.
The REN is useful in determining the number of devices you may connect to your 

telephone line and still have all of these devices ring when your telephone number 

is called. In most (but not all) areas, the sum of the RENs of all devices connected 

to one line should not exceed 5. To be certain of the number of devices you may 

connect to your line as determined by the REN, you should contact your local 

telephone company.
A plug and jack used to connect this equipment to the premises wiring and 

telephone network must comply with the applicable FCC Part 68 rules and 

requirements adopted by the ACTA. A compliant telephone cord and modular 

plug is provided with this product. It is designed to be connected to a compatible 

modular jack that is also compliant. See installation instructions for details.
Notes  
• This equipment may not be used on coin service provided by the telephone 

company.

• Party lines are subject to state tariffs, and therefore, you may not be able to use 

your own telephone equipment if you are on a party line. Check with your local 

telephone company.

• Notice must be given to the telephone company upon permanent disconnection 

of your telephone from your line.

Telephone Jack Requirements

To use this phone, you need an RJ11C type modular 

telephone jack, which might look like the one pictured 

here, installed in your home. If you don’t have a 

modular jack, call your local phone company to find 

out how to get one installed.

Installation

Digital Security System

Your cordless phone uses a digital security system to protect against false 

ringing, unauthorized access, and charges to your phone line.
When you place the handset in the base, the unit verifies its security code. 

After power outage or battery replacement, you should place the handset in 

the base for about 20 seconds to reset the code.

INSTALLATION NOTE: Some cordless telephones operate 

at frequencies that may cause or receive interference 

with TVs, microwave ovens, 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, 

microwave ovens, or VCR. If such interference continues, 

move the cordless telephone farther away from these 

appliances. Certain other communications devices may 

also use the 5.8 GHz frequency for communication, and, 

if not properly set, these devices may interfere with each 

other and/or your new telephone. If you are concerned 

with interference, please refer to the User’s Guide for 

these devices on how to properly set channels to avoid 

interference. Typical devices that may use the 5.8 GHz 

frequency for communication include wireless audio/video 

senders, wireless computer networks, multi-handset 

cordless telephone systems, and some long-range cordless 

telephone systems.

Important Installation Guidelines

•  Avoid sources of noise and heat, such as motors, fluorescent lighting, 

microwave ovens, heating appliances and direct sunlight.

•  Avoid areas of excessive dust, moisture and low temperature.
•  Avoid other cordless telephones or personal computers.
•  Never install telephone wiring during a lightning storm.
•  Never install telephone jacks in wet locations unless the jack is 

specifically designed for wet locations.

•  Never touch non-insulated telephone wires or terminals, unless the 

telephone line has been disconnected at the network interface.

•  Use caution when installing or modifying telephone lines.

Handset Layout

Set Up

There are four programmable menus available: Language, Area Code, Ringer 

Tone, and Default Setting.
During programming, you may press the flash/prog button at any time to go 

to the next option. To exit the menu, keep the previous setting and return to 

the standby mode, press the *exit button.

Display Language

1.  Press the flash/prog button until 

4

1ENG 2FRA 3ESP 

shows in the display. 

1ENG

 is the default.

2. Use the Caller ID/vol (- or +) button or the touch-tone pad on the handset 

to enter your selection.

3.  Press flash/prog again to save.

Local Area Code

1.  Press the flash/prog button until 

AREA CODE - - -

 shows in the display. 

- - -

  is the default. 

2. Use the touch-tone pad on the handset to enter your three digit area 

code.

3.  Press flash/prog again to save.

NOTE: If you make a mistake, press the del/chan button to 

erase a wrong number.

Ringer Tone

1.  Press the flash/prog button until 

RINGER TONE 

4

1

 shows in the display.  

is the default.

2. Use the Caller ID/vol (- or +) button or the touch-tone pad on the handset 

to scroll to 

1, 2, or 3

.

3.  Press flash/prog to save.

Default Setting

1.  Press the flash/prog button until 

DEFAULT

  

4

NO

 shows in the display.  

NO

 is the default.

2.  Use the Caller ID/vol (- or +) button on the handset to scroll  

to 

YES

 or 

NO

.

3. Press flash/prog to save. You will hear a confirmation tone.

Cordless Phone Basics

Charge/In Use Indicator

The phone is ON when the charge/in use indicator on the base is lit. The 

base indicator flashes when you receive a call.

Answering a Call

1.  When the phone rings, pick up the handset and press the talk/end/call back 

button.

2.  When finished, press the talk/end/call back button or place the handset 

on the base cradle to hang up.

Making a Call

1.  Pick up the handset and press the talk/end/call back button. Wait for 

the dial tone. The call timer starts counting minutes and seconds in the 

display.

2.  Dial a telephone number.
3.  When finished, press the talk/end/call back button again or place the 

handset on the base cradle to hang up.

Pre-dialing

1.  Make sure the phone is 

OFF (not in TALK mode).

2.  Dial a telephone number (the number you dial shows in the display).

NOTE: If you make a mistake dialing the number, use 

the del/chan button to backspace and erase the wrong 

number, and enter the correct number.

3.  Press the talk/end/call back button on the handset. The number 

automatically dials and the call timer starts counting the minutes and 

seconds in the display.

Thomson Inc.

10330 North Meridian Street

Indianapolis, IN 46290

© 2006 Thomson Inc. 

Trademark(s) ® Registered

Marca(s) Registrada(s)

Model 25836 

00008024 (Rev. 1 Dom E) 

06-28 

Printed in China

Introduction

CAUTION: When using telephone equipment, there 

are basic safety instructions that should always 

be followed. Refer to the IMPORTANT SAFETY 

INSTRUCTIONS provided with this product and save 

them for future reference.

IMPORTANT: Because cordless phones operate on electricity, 

you should have at least one phone in your home that isn’t 

cordless, in case the power  in your home goes out.

Before You Begin

Parts Checklist

Make sure your package includes the items shown here.

Base

Handset

Line cord

AC power 

adaptor

Handset 

battery

Modular 

telephone 

line jack

Wall plate

SEE MARKING ON BOTTOM / BACK OF PRODUCT

RISK OF ELECTRIC SHOCK

            DO NOT OPEN

WARNING:

 TO

PREVENT FIRE OR

ELECTRICAL SHOCK

HAZARD, DO NOT

EXPOSE THIS

PRODUCT  TO RAIN

OR MOISTURE.

THE LIGHTNING

FLASH AND ARROW

HEAD WITHIN THE

TRIANGLE IS A

WARNING SIGN

ALERTING YOU OF

“DANGEROUS

VOLTAGE” INSIDE

THE PRODUCT.

CAUTION: TO REDUCE THE

RISK OF ELECTRIC SHOCK, DO

NOT REMOVE COVER (OR

BACK). NO USER

SERVICEABLE PARTS INSIDE.

REFER SERVICING TO

QUALIFIED SERVICE

PERSONNEL.

THE EXCLAMATION

POINT WITHIN THE

TRIANGLE IS A

WARNING SIGN

ALERTING YOU  OF

IMPORTANT

INSTRUCTIONS

ACCOMPANYING

THE PRODUCT.

CAUTION:

Battery 

compartment 

door

• If your home has specially wired alarm equipment connected to the telephone 

line, ensure the installation of this product does not disable your alarm 

equipment. If you have questions about what will disable alarm equipment, 

consult your telephone company or a qualified installer.

US Number is located on the back of the cabinet.

REN Number is located on the back of the cabinet.

2  Rights of the Telephone Company 

Should your equipment cause trouble on y our line which may harm the telephone 

network, the telephone company shall, where practicable, notify you that 

temporary discontinuance of service may be required. Where prior notice is not 

practicable and the circumstances warrant such action, the telephone company 

may temporarily discontinue service immediately. In case of such temporary 

discontinuance, the telephone company must: (1) promptly notify you of such 

temporary discontinuance; (2) afford you the opportunity to correct the situation; 

and (3) inform you of your right to bring a complaint to the Commission pursuant to 

procedures set forth in Subpart E of Part 68, FCC Rules and Regulations.
The telephone company may make changes in its communications facilities, 

equipment, operations or procedures where such action is required in the 

operation of its business and not inconsistent with FCC Rules and Regulations. If 

these changes are expected to affect the use or performance of your telephone 

equipment, the telephone company must give you adequate notice, in writing, to 
allow you to maintain uninterrupted service.

Interference Information

This device complies with Part 15 of the FCC Rules. Operation is subject to the 

following two conditions: (1) This device may not cause harmful interference; and (2) 

This device must accept any interference received, including interference that may 

cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class 

B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed 

to provide reasonable protection against harmful interference in a residential 

installation.
This equipment generates, uses, and can radiate radio frequency energy and, if 

not installed and used in accordance with the instructions, may cause harmful 

interference to radio communications. However, there is no guarantee that 

interference will not occur in a particular installation.
Privacy of Communications may not be ensured when using this product.
If this equipment does cause harmful interference to radio or television reception, 

which can be determined by turning the equipment off and on, the user is encouraged 

to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna (that is, the antenna for radio or 

television that is “receiving” the interference).

• Reorient or relocate and increase the separation between the 

telecommunications equipment and receiving antenna.

• Connect the telecommunications equipment into an outlet on a circuit different 

from that to which the receiving antenna is connected.

If these measures do not eliminate the interference, please consult your dealer or an 

experienced radio/television technician for additional suggestions. Also, the Federal 

Communications Commission has prepared a helpful booklet, “How To Identify and 

Resolve Radio/TV Interference Problems.” This booklet is available from the U.S. 

Government Printing Office, Washington, D.C. 20402. Please specify stock number 

004-000-00345-4 when ordering copies.
Notice: The changes or modifications not expressly approved by the party responsible 

for compliance could void the user’s authority to  operate the equipment.

Hearing Aid Compatibility (HAC)

This telephone system meets FCC standards for Hearing Aid Compatibility.

Licensing

Licensed under US Patent 6,427,009.

FCC RF Radiation Exposure 

Statement

This equipment complies with FCC RF radiation exposure limits set forth for an 

uncontrolled environment. This equipment should be installed and operated with 

a minimum distance of 20 centimeters between the radiator and your body. This 

transmitter must not be co-located or operated in conjunction with any other antenna 

or transmitter.”

display

talk/end/call back 

(button)

Caller ID/vol - 

(caller ID/volume down 

button)

Caller ID/vol + 

(caller ID/volume 

up button)

del/chan 

(delete/channel 

button)

redial 

(button)

* exit 

(button)

# pause 

(button)

flash/prog 

(flash/program 

button)

mute 

(button)

mem 

(memory button)

format 

(button)

page 

(button)

charge/in use 

(indicator)

Time

Date

Number of calls

Caller ID name

Caller ID phone number

Call Waiting Caller ID

Provided you subscribe to Call Waiting Caller ID service from your phone 

company; if you receive an incoming call and you are already on the phone, 

a beep indicates the presence of a Call Waiting call on the line. Only the 

handset that is in use at the time of the call will display and store the Call 

Waiting Caller ID information.
•   When you hear the call waiting beep in the handset receiver, press the 

flash/prog button to put the current call on hold and answer the incoming 

call. Press flash/prog again to return to the original call.

Receiving CID Records

When you receive a call, the Caller ID information is transmitted between the 

first and second ring. The Caller ID information appears on the display while 

the phone rings, giving you a chance to monitor the information and decide 

whether or not to answer the call.

Storing CID Records (In CID Memory)

If you are not at home or cannot answer, your telephone’s Caller ID memory 

stores the data for the 40 most recent calls you received so you can see who 

called while you were unavailable. When the 41st call is received, the oldest 

Caller ID record (1st call) is automatically deleted.
You may review the stored information at any time. Calls received since your 

last review show as 

NEW

 in the display. Calls that have not been previously 

reviewed but were received from the same number more than once show as 

REPT

 in the display.

Reviewing CID Records

As calls are received and stored, the display is updated to let you know how 

many calls have been received.
•  Press the Caller ID/vol (-) to scroll through the call records from the most 

recent to the oldest.

•  Press the Caller ID/vol (+) to scroll through the call records from the oldest 

to the newest.

Dialing a Caller ID Number

1.  Make sure the phone is 

OFF (not in TALK mode). 

2.  Use the Caller ID/vol (- or +) button to display the desired record. 
3.  Press talk/end/call back. The number dials automatically.

NOTE: Depending on (a) how the incoming caller’s phone 

number is formatted when it is received, and (b) whether 

or not you previously pre-programmed your local area 

code into the set up menu, you may need to adjust the 

format of the incoming caller’s stored phone number 

before making the call, press the format button to adjust 

the number, and try again

Available formats include:

Number of digits  

Explanation  

Example

Eleven digits 

long distance code “1 ” 

1-317-888-8888

 

+3-digit area code

 

+7-digit telephone number.

Ten digits 

3-digit area code + 

317-888-8888

 

7-digit telephone number.

Seven digits 

7-digit telephone number. 

888-8888

Storing CID Records in Internal Memory

You may also store CID information in the phone’s internal memory. 

NOTE: It is important that you format CID records correctly 

BEFORE storing in internal memory as you cannot reformat 

CID records stored in memory.

1.  Make sure the phone is 

OFF (in standby mode).

2.  Press the Caller ID/vol (- or +) button to scroll to the desired caller ID.
3.  Press the mem button.
4.  Press a number key (0 - 9) to store the number in that memory location. 

You will hear a confirmation tone.

Model 25836

5.8 GHz Cordless 

Handset User’s Guide

4.  Insert the battery pack.
5.  Close the battery compartment by pushing the door up until it snaps into 

place.

6.  Set the RINGER switch (on the handset) to ON.

Base Station

1.  Choose an area near an electrical outlet and a telephone wall jack 

(RJ11C), and place  your cordless telephone on a level surface, such as a 

desktop or tabletop, or you may mount it on the wall.

black wire

red wire

battery

pack

PRESS DOWN

FIRMLY

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