AT&T TL90078 User Manual

User’s manual

TL90078
DECT 6.0 expansion handset
for use with AT&T models
TL92278/TL92328/TL92378

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

TL92378

telephone. For customer service or product

information, please visit our website at

www.telephones.att.com

or call 1 [phone].

In Canada, dial 1 [phone].

Model #: TL90078
Type: DECT 6.0 expansion handset

Serial #:

(found on the bottom of the charger)

Purchase date:
Place of purchase:

TL92278/TL92328/

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.

© 2008 Advanced American Telephones. All rights reserved.
AT&T and the 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.

Parts checklist

Your telephone package contains the following items.

User’s manual

TL90078
DECT 6.0 expansion handset
for use with AT&T models
TL92278/TL92328/TL92378

User's manual

Battery for cordless handset

Cordless handset

Battery compartment
cover

Charger for cordless handset
with power adapter installed

User’s manual

TL90078
DECT 6.0 expansion handset
for use with AT&T models
TL92278/TL92328/TL92378

Table of contents

Getting started

Quick reference guide ...............1

Installation preparation .............4

Charger installation ..................... 5

Battery installation &

charging ......................................6

Adding and registering

handsets .....................................8

Replacing a handset ................10

Appendix A,

Maintenance................................. 11

Appendix B,

Important safety

information ............................. 12

Appendix C,

FCC Part 68 and ACTA............ 16

Appendix D,

FCC Part 15 .................................. 19

Appendix E,

Limited warranty ........................ 21

Appendix F,

Technical specifications ......... 25

Appendix G,

Troubleshooting ......................... 27

Getting started

Quick reference guide

CHARGE indicator

On when the handset is
charging in the telephone
base or charger.

DIR / CID

Press DIR to display
directory entries.
Press to scroll up while in
menus.
While entering names or
numbers, press to move the
cursor to the right.
Press to increase the
listening volume when on
a call.

Press CID to display
caller ID history.
Press to scroll down while
in menus.
While entering names or
numbers, press to move the
cursor to the left.
Press to decrease the
listening volume when on
a call.

MENU/SELECT

Press to display the menu.
While in the menu, press to

select an item or save an
entry or setting.

DELETE/MUTE

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.

OFF/CLEAR

During a HOME or
CELLULAR line call, press

to end the call. While in a
menu, press to cancel an
operation, back up to the
previous menu, or exit the
menu display.

1

Getting started

Quick reference guide

REDIAL/PAUSE

Press to view redial
memory.
While entering numbers,
press and hold to insert a
dialing pause.

HOME/FLASH

Press to make or answer
a HOME call.
Flashes rapidly when
there is an incoming
HOME call.
Flashes slowly when a
HOME call is on hold.
During a HOME call, press
to receive an incoming
call if call waiting is
activated.

SPEAKER

Press to turn on the
handset speakerphone.
Press again to resume
normal handset use.

HOLD

Press to put the HOME or
CELLULAR call on hold.

CELLULAR

Press to make or answer
a CELLULAR call.
Flashes rapidly when there
is an incoming CELLULAR
call.
Flashes slowly when a
CELLULAR call is on hold.
During a CELLULAR
call, press to receive
an incoming call if call
waiting is activated.

2

Getting started

Quick reference guide

Feature menu

The > symbol shows a
highlighted menu item.

>DIRECTORY

CALL LOG

Menu

Feature menu

DIRECTORY
CALL LOG
INTERCOM
RINGER VOLUME
RINGER TONE
KEY TONE
LANGUAGE
CLR VOICEMAIL
HOME AREA CODE

Using menus

Press or to scroll through menu

items.
Press MENU/SELECT to select or save

changes to a highlighted menu 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 TL92278/TL92328/TL92378 telephone. If you are unableTL92278/TL92328/TL92378 telephone. If you are unable telephone. If you are unable
to find your manual, go to www.telephones.att.com to
read and/or download the manual.

3

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 or telephone base display - remove it before use.

For customer service or product information, visit our website at

STOP!

See pages 6-7
for easy instructions.

www.telephones.att.com or call 1 [phone]. In

Canada, dial 1 [phone].

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 workbench.

4

Getting started

Charger installation

Plug the power adapter
into an electrical outlet not
controlled by a wall switch.

IMPORTANT INFORMATION

Use only the power adapter(s) supplied with this product. To order a

1.
replacement power adapter, visit our website at

www.telephones.att.com, or call 1 [phone].

In Canada, dial 1 [phone].
The power adapter is intended to be correctly oriented in a vertical or

2.
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.

5

Getting started

Battery installation & charging

Install the battery as shown below. After installing the battery,
you can make and receive short calls. Place the handset in
the telephone base or charger when not in use. For optimal
performance, charge the handset battery for at least 16 hours
before use. See the table on page 25 for battery operating times.

Step 1

Press the depression
and slide the battery
compartment cover
downwards (if
necessary).

Step 2 Step 3

Plug the battery
securely into the
connector inside
the handset battery
compartment,
matching the color­coded label. Insert
the supplied battery
with the label THIS
SIDE UP facing up
as indicated.

6

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 it face up
in the telephone base or charger. The

CHARGE light will be on when charging.

IMPORTANT INFORMATION

Use only the supplied rechargeable battery or replacement battery
(model BT8001). To order, visit our website at

www.telephones.att.com or call 1 [phone]. In

Canada, dial 1 [phone].

7

Getting started

Adding and registering handsets

Before using a new TL90078 handset, you must register it
with the AT&T TL92278/TL92328/TL92378 telephone system
(purchased separately). The AT&T TL92278/TL92328/TL92378
telephone system can accommodate up to 12 handsets.

The handsets provided with the TL92278 come pre-registered
as HANDSET 1 and HANDSET 2. You can register up to 10
additional handsets to the telephone base, and they will be
assigned numbers in the order they are registered (HANDSET 3,
HANDSET 4, HANDSET 5 and so on).

The handsets provided with the TL92328/TL92378 come pre­registered as HANDSET 1, HANDSET 2 and HANDSET 3. You
can register up to nine additional handsets to the telephone
base, and they will be assigned numbers in the order they are
registered (HANDSET 4, HANDSET 5, HANDSET 6 and so on).

8

Getting started

Adding and registering handsets

NOT REGISTERED

PRESS HNDST LOC

4 SEC ON BASE

PLEASE WAIT...

When first purchased, all expansion handsets
will show NOT REGISTERED on the screen.
The new handset(s) may need to be charged
for five minutes before registering to the
telephone base.

To register a handset to your telephone
base

1. Place the unregistered handset into the

telephone base. If PRESS HNDST LOC

4 SEC ON BASE does not appear on

the handset screen after a few seconds,
remove the handset and place it in the
telephone base again.

2. On the telephone base, press and hold

HANDSET LOCATOR for about four

seconds (until the red IN USE light on
the telephone base turns on) and then
release the button. The handset will show

PLEASE WAIT... and it will take about

10 seconds to complete the registration.
The handset will display HANDSET X
REGISTERED, with X being the handset
number (1-12). There will be a beep
sound if the registration is successful.

HANDSET X

REGISTERED

NOTES:

1. If the registration is not successful, the display

will show NOT REGISTERED. To reset the handset,
remove the handset from the telephone base and
place it back in. Try the registration process again.

2. You cannot register a handset if any other system
handset is in use.

9