5.8 GHz expansion handset for
use with AT&T models
TL74108/TL74208/TL74308/
TL74408/TL74258/TL74358/
TL74458
Congratulations
on your purchase
of this AT&T product.
Please read this user’s manual for the information
necessary to install your new AT&T product.
For complete instructions, please refer to the manual
provided with your
TL74408/TL74258/TL74358/TL74458
customer service or product information, please visit
our website at www.telephones.att.com
or call 1 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.
Model #: TL77008
Type: 5.8 GHz expansion handset
Serial #:
(found on the bottom of the charger)
Purchase date:
Place of purchase:
TL74108/TL74208/TL74308/
telephone. For
Save your sales receipt and original packaging in case it is necessary
to return your telephone for warranty service.
The ENERGY STARR program (www.energystar.gov) recognizes
and encourages the use of products that save energy and
help protect our environment. We are proud to mark this
product with the ENERGY STARR label indicating it meets the
latest energy efficiency guidelines.
Save your sales receipt and original packaging in case it is
necessary to ship your telephone for warranty service.
Check to make sure the telephone package includes the
following items:
User’s manual
TL77008
5.8 GHz expansion handset
for use with AT&T models
TL74108/TL74208/TL74308/
TL74408/TL74258/TL74358/
TL74458
User's manual
Battery for cordless handset
Belt clip for cordless handset
Cordless handset
Battery compartment cover
Charger for cordless
handset
Power adapter
User’s manual
TL77008
5.8 GHz expansion handset
for use with AT&T models
TL74108/TL74208/TL74308/
TL74408/TL74258/TL74358/
TL74458
Table of contents
Getting started
Quick reference guide ........... 1
Installation preparation ........ 3
Charger installation ................ 4
Battery installation &
charging ................................. 5
Adding and registering
handsets ......................................7
Replacing a handset ............... 9
Belt clip & optional
headset .......................................11
Appendix
Troubleshooting ......................12
Maintenance .............................22
Important safety
information .........................23
FCC Part 68 and ACTA ........27
FCC Part 15...............................30
Limited warranty ....................32
Technical specifications ......36
Getting started
Quick reference guide
CHARGE
On when the handset is
charging in the charger.
CID
Press to display caller ID
information.
PHONE/FLASH
Press to make or answer
a call.
During a call, press to
receive an incoming call if
call waiting is activated.
REDIAL/PAUSE
Press to view redial
memory.
While entering numbers,
press and hold to insert a
dialing pause.
MUTE/REMOVE
During a call, press to
mute microphone.
While reviewing the caller
ID history, press to delete
an individual entry, or
press and hold to clear
the caller ID history. While
predialing, press to delete
digits.
SPEAKER
Press to turn on the
handset speakerphone.
Press again to resume
normal handset use.
Press or to scroll up
or down while in menus.
While entering names or
numbers, press or to
move the cursor to the left
or right.
MENU/SELECT
Press to enter the menu.
While in the menu, press to
select an item or save an
entry or setting.
DIR
Press to display directory
entries.
VOLUME
Press on the side of the
handset to adjust listening
volume. Each press of
the button increases or
decreases the volume.
OFF/CLEAR
During a call, press to hang
up.
While using menus, press
to cancel an operation,
back up to the previous
menu, or exit the menu
display.
INT
Press to begin an intercom
conversation or to transfer
a call.
1
Getting started
Quick reference guide
Feature menu
The >
symbol
shows a
highlighted
menu item.
<DIRECTORY
CALL LOG
Feature menu
DIRECTORY
CALL LOG
RINGER VOLUME
RINGER TONE
KEY TONE
LANGUAGE
CLR VOICE MAIL
Using menus
Press or to scroll through menu items.
Press MENU/SELECT to select or modify a
highlighted item.
Press OFF/CLEAR to cancel an operation,
back up to the previous menu, or exit the menu
display.
For complete instructions, please refer to the manual provided
with your TL74108/TL74208/TL74308/TL74408/TL74258/
TL74358/TL74458 telephone. If you are unable to find your
manual, please visit www.telephones.att.com to read and/
or download the manual.
2
Getting started
Installation preparation
You must install and
charge the battery before
using the telephone.
Your product may be shipped with a protective sticker covering the
handset display - remove it before use.
For customer service or product information, visit our website at
STOP!
See pages 5-6
for easy instructions.
www.telephones.att.com or call 1 (800) 222-3111. In
Canada, dial 1 (866) 288-4268.
Avoid placing the telephone base too close to:
• Communication devices such as: television sets, VCRs, or other
cordless telephones.
• Excessive heat sources.
• Noise sources such as a window with traffic outside, motors,
microwave ovens, refrigerators, or fluorescent lighting.
• Excessive dust sources such as a workshop or garage.
• Excessive moisture.
• Extremely low temperature.
• Mechanical vibration or shock such as on top of the washing
machine or work bench.
3
Getting started
Charger installation
1. Plug the small end
of the smaller power
adapter into the jack
on the underside of the
charger, then route the
cord through the slot
as shown.
2. Plug the large end
of the smaller power
adapter into a power
outlet not controlled
by a wall switch.
IMPORTANT INFORMATION
Use only the power adapter supplied with this product. To order a
1.
replacement power adapter, visit our website at
www.telephones.att.com, or call 1 (800) 222-3111.
In Canada dial 1 (866) 288-4268.
The power adapter is intended to be correctly oriented in a vertical
2.
or floor mount position.
4
Getting started
THIS SIDE UP
WARNING:DO NOT BURN OR
PUNCTURE BATTERIES
MADE IN CHINA
Battery Pack
BT5633/BT6823
3.6V 550mAh Ni-MH
THIS SIDE UP
WARNING:DO NOT BURN OR
PUNCTURE BATTERIES
MADE IN CHINA
Battery Pack
BT5633/BT6823
3.6V 550mAh Ni-MH
THIS SIDE UP
WARNING:DO NOTBURN OR
PUNCTURE BATTERIES
MADE IN CHINA
Battery Pack
BT5633/BT6823
3.6V 550mAh Ni-MH
THIS SIDE UP
WARNING:DO NOT BURN OR
PUNCTURE BATTERIES
MADE IN CHINA
Battery Pack
BT5633/BT6823
3.6V 550mAh Ni-MH
Battery installation & charging
Install the battery as shown below. After installing the battery,
you can make and receive short calls, but replace the handset
in the charger when not in use. For optimal performance, charge
the handset battery for at least 16 hours before use. When fully
charged, the handset battery provides approximately five hours
of talk time or three days of standby time.
Step 1
Plug the battery
securely into the
plug inside the
handset battery
compartment,
matching the colorcoded label.
Step 2
Insert the supplied
battery with the label
THIS SIDE UP facing up
as indicated.
5
Step 3
Align the cover
flat against
the battery
compartment
cover, then slide
it upwards until
it clicks into
place.
Getting started
Battery installation & charging
Step 4
Charge the handset by placing the
handset face up in the telephone
base or in the additional charger.
The CHARGE light will be on when
charging.
IMPORTANT INFORMATION
Use only the battery supplied with this product. To order a replacement
or spare battery (AT&T model 27910, part number 89-0099-00-00) or
equivalent, visit our website at www.telephones.att.com, or
call 1 (800) 222-3111. In Canada dial 1 (866) 288-4268.
6
Getting started
Adding and registering handsets
Before using a new TL77008 handset, you must register it with
the TL74108/TL74208/TL74308/TL74408/TL74258/TL74358/TL74108/TL74208/TL74308/TL74408/TL74258/TL74358/
TL74458 telephone base (purchased separately). The TL74108/
TL74208/TL74308/TL74408/TL74258/TL74358/TL74458
telephone can accommodate up to four cordless handsets.
• The handset provided with the TL74108 is automatically
registered as handset 1. Additional handsets will be assigned
numbers in the order they are registered (handset 2, handset
3, or handset 4). You can register a maximum of four handsets.
• The TL74208/TL74258 has two handsets automatically
registered as handset 1 and 2. You can register two additional
handsets, which will be assigned numbers 3 and 4.
• The TL74308/TL74358 has three handsets automatically
registered as handset 1, 2 and 3. You can register one
additional handset, which will be assigned number 4.
• The TL74408/TL74458 has four pre-registered handsets, so
you cannot register any additional handsets to it.
7
Getting started
Adding and registering handsets
To register a handset to your telephone base
NOT REGISTERED
PRESS HNDST LOC
4 SEC ON BASE
PLEASE WAIT...
HANDSET X
REGISTERED
• When first purchased, all optional accessory
handsets show NOT REGISTERED on the
screen. The new handset may need to be
charged for five minutes before registering to
the telephone base.
• Make sure your handset battery is properly
installed and charged (pages 5-6).
• Place the unregistered handset into the
telephone base. After a few seconds
HNDST LOC 4 SEC ON BASE
the screen.
• Press and hold HANDSET LOCATOR on the
main telephone base until the IN USE light
comes on (about four seconds), then release
the button.
• The handset will show PLEASE WAIT... for a
while.
• The handset will show HS X REGISTERED and will
beep if the registration was successful.
PRESS
will be shown on
NOTE: If the registration is not successful, the display
will show NOT REGISTERED. Reset the handset by
lifting the handset out of the telephone base and
then place the handset back in the telephone base.
Now try the registration process again.
8
Getting started
Replacing a handset
You may need to de-register your handsets if:
You have the maximum number of registered handsets (four) and
need to replace a handset.
-OR-
You wish to change the designated handset number of your
registered handsets.
You must first de-register ALL the handsets, and then re-register
ALL the handsets you wish to use.
Please read carefully through all the instructions on this page
before beginning the de-registration process.
To de-register all handsets
1. Press and hold HANDSET LOCATOR on the telephone base
for about 10 seconds (until the IN USE light turns on and starts
to flash), then release the HANDSET LOCATOR button.
2. Immediately press and release HANDSET LOCATOR again.
You must press HANDSET LOCATOR while the IN USE light
is still flashing. (The light flashes about seven seconds. If the
light stops flashing, pick up the handset and place back into
the telephone base, then start again step number one.)
3. The handset(s) will show CONNECTING... and it will take about
10 seconds to complete de-registration. ALL handsets will
show NOT REGISTERED if de-registration was successful.
NOT REGISTERED
9
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