AT&T TL78108 User manual

User’s manual
TL78108/TL78208/TL78308/
TL78408 5.8 GHz cordless tele-
phone/answering system with
caller ID/call waiting

Model #: TL78108/TL78208/TL78308/TL78408
Product name: 5.8GHz cordless telephone/answering system
Serial #:
(found on the bottom of the telephone base)
Purchase date:
Place of purchase:
The ENERGY STARRprogram (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 STARRlabel indicating it meets the latest ener-
gy efficiency guidelines.
© 2007 Advanced American Telephones. All rights reserved.
AT&T and the globe symbol AT&T logo are trademarks of AT&T Intellectual Property II, L.P. d/b/a
AT&T Intellectual Property licensed to Advanced American Telephones. Printed in China.
Congratulations
on purchasing your
new AT&T product.
Before using this AT&T product, please
read the Important safety instructions
on pages 58-60 of this manual.
Please thoroughly read the user’s
manual for all the feature operations
and troubleshooting information necessary to install
and operate your new
AT&T product. You can also visit our
website at www.telephones.att.com
or call 1 [phone].
In Canada, dial 1 [phone].

See page 7
for easy instructions.
You must install and charge
the battery before using the
telephone.
For customer service or product information, please visit our website at www.
telephones.att.com or call 1 [phone]. In Canada, dial 1 (866)
288-4268.
Add new handsets to make your telephone more versatile (see page 49)
Your telephone can accommodate up to four cordless handsets. You can add new
handsets (model TL70008, sold separately) anytime, but each must be registered
with the telephone base before use.
The handset provided with your TL78108 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 4 handsets.
The TL78208 has two handsets automatically registered as handsets 1 and 2.
You can register two additional handsets, which will then be assigned numbers
3 and 4.
The TL78308 has three handsets automatically registered as handsets 1, 2 and 3.
You can register one additional handset, which will then be assigned number 4.
The TL78408 has four pre-registered handsets, so no additional handset can
be added to the system.
Handset 1
NOTE: All four handsets can be used simultaneously, however only two can be used on one
type of call at a time. For example, two handsets can be used on an outside call, while the
other two handsets can be used on an intercom call at the same time.
Handset 2 Handset 3 Handset 4
STOP!
(Model TL78108)
(Model TL78208)
(Model TL78308)
(Model TL78408)
TL78208
TL78308
TL78408
TL78308
TL78408
TL78408

Getting started
Quick reference guide......................2
Parts checklist......................................4
Telephone base installation...........5
Telephone base and charger
installation .......................................6
Battery installation & charging........7
Installation options...............................8
Belt clip & optional headset............10
Telephone operation
Basic handset operation .............. 11
Basic telephone base operation ..... 12
Options while on calls................... 13
Intercom calls.................................... 16
Intercom call transfer .................... 17
Handset settings .............................. 19
Base settings...................................... 25
Directory
Directory............................................... 26
New directory entries .................... 27
Directory search ............................... 29
To dial, delete or change entries ... 31
Caller ID operation
Caller ID operation .......................... 33
To review the call log.................... 36
Answering system operation
Answering system operation.........37
Day & time announcements..........38
Outgoing announcement................39
Changing feature options...............40
Message playback...............................41
Recording & playing memos .........42
Message counter displays ..............43
Answering system mode.................44
Remote access .....................................45
Appendix
Screen icons, indicator
lights & tones...................................46
Handset display screen messages ....47
Adding and replacing handsets...49
Replacing a handset...........................50
Troubleshooting................................ 51
Important safety instructions..... 58
FCC Part 68 and ACTA .................. 61
FCC Part 15......................................... 62
Limited warranty .............................. 63
Technical specifications................ 66
Index....................................................... 67
1
Table of contents
User’s manual
TL78108/TL78208/TL78308/
TL78408 5.8 GHz cordless
telephone/answering system
with caller ID/call waiting

2
Getting started
Quick reference guide
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.
MUTE/DELETE
While on a call, press to mute
microphone (page 13).
While reviewing the call log, press
to delete an individual entry, or
press and hold to clear the caller
ID log (page 36).
While predialing, press to delete
digits (page 11).
CID
Press to display caller ID infor-
mation (page 36).
SPEAKER
Press to activate handset speak-
erphone.
Press again to resume normal
handset use (page 11).
DIR
Press to display directory entries
(page 29).
PHONE/FLASH
Press to make or answer a call.
During a call, press to receive
an incoming call if call waiting is
activated (page 13).
INT
Press to initiate an intercom
conversation or transfer a call
(pages 16-18).
Cordless handset
Feature menu
Menu
Feature menu
DIRECTORY ................................ Page 26
CALL LOG ................................... Page 33
RINGER VOLUME.................... Page 20
RINGER TONE .......................... Page 21
KEY TONE ................................... Page 21
LANGUAGE ................................ Page 22
CLR VOICE MAIL..................... Page 23
DIAL TYPE................................... Page 24
Using menus
Press up or down NavKey
or to scroll through
menu items.
Press MENU/SELECT to
select or modify a high-
lighted item.
Press OFF/CLEAR to
cancel an operation, back
up to the previous menu,
or exit the menu display.
MENU/SELECT
Press to display the menu.
When in the menu, press to
select an item or save an entry or
setting. Press up or down NavKey
or to scroll up or down
while in menus. While entering
names or numbers, press left or
right NavKey or to move
the cursor to the left or right.
>shows a highlighted item
REDIAL/PAUSE
Press to view redial memory
(page 14).
While entering numbers, press
and hold to insert a dialing
pause (page 12).
> DIRECTORY
CALL LOG
LEFT RIGHT
UP
DOWN
CENTER

3
Getting started
Quick reference guide
Telephone base
REDIAL/PAUSE
Press to dial out the most recently
dialed number using the speakerphone
(page 12).
VOLUME
Press to adjust speakerphone listening
volume (page 15).
MUTE
While on a call, press to mute micro-
phone; press again to resume (page 15).
SPEAKER
Press to turn speakerphone on or off
(begin or end a call, page 12).
FLASH
During a call, press to receive an
incoming call if call waiting is activated
(page 15).
Answering system controls (pages 37-45)
CLOCK
Press to review or set clock
(page 38).
SETUP
Press to listen to setup options
(page 40).
ANNC
Press to review or record
announcement; press again to
quit (page 39).
RECORD
Press to record a memo (page
42) or after pressing ANNC. to
record an outgoing announce-
ment (page 39).
REPEAT
Press to repeat message; press
twice, or once at the begin-
ning of the date and time
announced, to play previous
message (page 41).
DELETE
Press to delete message current-
ly playing; hold to delete all old
messages (page 41).
SKIP
Press to skip message (page 41).
PLAY/STOP
Press to start or stop message
playback (page 41).
ANSWER ON
Press to turn answering system
on or off.
NOTE: Press PLAY/STOP to confirm your selection and exit the menu after changing your
desired feature.

4
Getting started
Parts checklist
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. The model
number of your phone can be found on the label located on the bottom of
the telephone base.
Battery for cordless
handset(s)
(1 for TL78108)
(2 for TL78208)
(3 for TL78308)
(4 for TL78408)
Power adapter
for telephone
base
Power adapter for
handset charger(s)
(2 for TL78208)
(3 for TL78308)
(4 for TL78408)
Battery compartment
cover(s)
(1 for TL78108)
(2 for TL78208)
(3 for TL78308)
(4 for TL78408)
Telephone base with mounting
bracket installed
Cordless handset(s)
(1 for TL78108)
(2 for TL78208)
(3 for TL78308)
(4 for TL78408)
Belt clip for cordless
handset(s)
(1 for TL78108)
(2 for TL78208)
(3 for TL78308)
(4 for TL78408)
Charger for cordless
handset(s)
(2 for TL78208)
(3 for TL78308)
(4 for TL78408)
User’s manual
TL78108/TL78208/TL78308/
TL78408 5.8 GHz cordless
telephone/answering system
with caller ID/call waiting
User's manual
Telephone line cord
Quick start guide
TL78108/TL78208/TL78308/
TL78408 5.8 GHz cordless
telephone/answering system
with caller ID/call waiting
Quick start guide

5
Getting started
Telephone base installation
Choose a central location close to a telephone jack and a power outlet not
connected to a wall switch. The telephone base can be placed on a flat sur-
face or mounted on a standard wall plate. For optimum range and better
reception, place the telephone base in a high and open location.
Avoid placing the telephone base too close to:
• Communication devices such as: personal computers, computer routers,
television sets, VCRs, wireless routers (wireless broadband, wi-fi, or 802.11)
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.

6
Getting started
Telephone line cord
DSL filter
(Optional for DSL users,
see Note No. 4 below)
NOTES:
1. Use only the provided power cord. If you need a replacement, visit our website at
www.telephones.att.com or call 1 [phone]. In Canada, dial 1 (866)
288-4268.
2. Be sure to use an electrical outlet not controlled by a wall switch.
3. This power adapter is intended to be correctly oriented in a vertical or floor mount position.
The prongs are not designed to hold the plug in place if it is plugged into a ceiling, under-
the-table or cabinet outlet.
4. If you receive high speed internet through your telephone line (commonly referred to as DSL) and
you are experiencing interference during telephone conversations and/or your caller ID features
are not functioning properly, install a DSL filter to the telephone line between the telephone base
and the telephone wall jack. Contact your DSL service provider for a DSL filter.
Telephone base and charger installation
4. Plug the large end of the larger
power adapter into an electrical outlet
not controlled by a wall switch.
5. Plug the other end of the tele-
phone line cord into a telephone
jack.
3. Route cords through
slots.
1. Plug one end of the
telephone line cord
into the telephone jack
at the bottom of the
telephone base.
2. Plug the small end
of the larger power
adapter into the power
jack at the bottom of
the telephone base.
b. Plug the large end
of the smaller power
adapter into an elec-
trical outlet not
controlled by a wall
switch.
a. Plug the small
end of the smaller
power adapter into
the jack on the
underside of the
charger, then route
the cord through
the slots as shown.
c. The battery
may have enough
charge to allow
for some calls.
For best perform-
ance, place hand-
set in telephone
base or charger
to charge for at
least 16 hours
before first use.

7
Getting started
Battery installation & charging
After installing the battery, it may have enough charge to allow some calls. For
best performance, place each handset in the telephone base or a charger and
allow to charge for 16 hours before use. You can keep the batteries charged by
returning the handsets to the telephone base or chargers after each use. When
the battery is fully depleted, a recharge takes about 16 hours. The average talk
time on a fully charged battery is about eight hours depending on environmental
conditions, and the standby time is approximately three days.
3. Slide the battery
compartment cover
towards the center
until it clicks into
place.
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
2. Place the battery
and wires neatly
inside the compart-
ment.
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
Low battery indicator
Return handset to telephone base or
charger to recharge when this symbol
flashes, the handset screen is dim or
completely clear. (Handset will beep
when battery is low.)
Caution: Use only the supplied rechargeable battery or replacement battery (model 27910,
part number 89-0099-00-00). To order, visit our website at www.telephones.att.com or call 1
[phone]. In Canada, dial 1 [phone].
To replace the battery, press
down and push outward on
the tab to open the battery
compartment cover. Remove
the old battery and discon-
nect it from the compart-
ment. Follow the instructions
on this page to install and
charge the new battery.
LOW BATTERY
1. Plug the battery securely
into the plug inside the hand-
set battery compartment,
matching the color-coded
label.