Atandt Cordless Headset Tl 7600 Users Manual

Cordless Headset TL 7600 TL7600_UM_i12_

TL 7600 to the manual c9973f65-156b-487f-91c9-c862bab8724c

2015-02-05

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User’s manual
TL7600
DECT 6.0
accessory cordless headset

Congratulations
on your purchase of this AT&T product. Before using this AT&T
product, please read Important safety information on
pages 35-38 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 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.
Model number:	 TL7600 (Headset and headset charger)
Type:		
DECT 6.0 accessory cordless headset
Serial number: 	
Purchase date: 	
Place of purchase: 	
Both the model and serial numbers of your AT&T product can be
found on the bottom of the headset charger.
Save your sales receipt and original packaging in case it is necessary
to return your product for warranty service.

© 2008-2012 Advanced American Telephones. All Rights Reserved. AT&T and
the AT&T logo are trademarks of AT&T Intellectual Property licensed to
Advanced American Telephones, San Antonio, TX 78219. Printed in China.

Parts checklist
Check to make sure the headset package includes the following
items. Save your sales receipt and original packaging in the
event warranty service is necessary.

User’s manual
TL7600
DECT 6.0
accessory cordless headset

User's manual

Headset charger

Charger power adapter

Cordless headset

Battery compartment cover

Behind the neck band

Over the ear hook

Battery for headset

Over the head band

User’s manual
TL7600
DECT 6.0
accessory cordless headset

Table of contents
Getting started
Quick reference guide headset............................................. 1
Headset lights........................... 1
Headset alert tones............... 3
Quick reference guide headset charger........................... 4
Installation preparation............ 5
Charger installation.................... 6
Battery installation..................... 7
Battery charging.......................... 8
Registering the headset........... 9
To register a headset to
the DECT headset base..... 10
To register the headset
to an AT&T DECT cordless
telephone base..................... 11
Headset attachments............. 12
Over the ear hook............... 12
Over the head band............ 15
Behind the neck band....... 17

Operation
Headset operation................... 19
Making a call.......................... 19
Answering a call on the
headset...................................... 20

Ending a call on
the headset............................. 20
Auto off..................................... 20
Temporary ring tone
silencing.................................... 21
Intercom calls and
transfers.................................... 21
Options while on calls........... 22
Volume control...................... 22
Call waiting............................. 22
Switching a call between
handset and headset.......... 23
Multiple headset/
handset use............................. 24
Mute............................................ 24
Replacing a headset............... 25
To deregister all
headsets from your
TL7610/TL7611/TL7612
headset base.......................... 25
To deregister all headsets
from an AT&T cordless
telephone base..................... 26

Appendix
Troubleshooting........................ 27
Important safety
information.................................. 35

Especially about cordless
headsets................................... 36
Precautions for users
of implanted cardiac
pacemakers............................. 38
Pacemaker patients............ 38
Maintenance............................... 39
FCC Part 68 and ACTA.......... 40
FCC Part 15................................. 43
Limited warranty....................... 45
Technical specifications........ 49
DECT 6.0 digital
technology............................... 49
Operating range.................... 49
Extended range and
clarity......................................... 49

Index
Index............................................... 50



Getting started

Quick reference guide - headset
ON/OFF
Press to make, answer, or end a call.

Headset lights
ON/OFF light status
On

• Headset is charging in the headset charger.
• Headset is trying to register to the headset base or
telephone base.
• Headset is searching for the headset base.

Flash

• Flashes slowly when incorrect battery is installed.
• Flashes three times, followed by a pause. This cycle
then repeats three more times and then shuts down to
indicate the battery level is very low.
• Flashes twice every five seconds to indicate the
headset is not registered.
• Flashes every 20 seconds to indicate the battery is low
and needs to be charged in the headset charger.
• Flashes every three seconds to indicate the headset
is in use.
• Flashes quickly when there is an incoming call.


Getting started

Quick reference guide - headset

VOLUME /+ –
Press the volume keys on the
side of the headset to adjust the
listening volume when on a call
(page 22).

MUTE/FLASH
Press to mute the microphone
during a call (page 24).
Press and hold to receive call
waiting during a call (page 22).

EARPIECE

Press to mute the ring tone in
the earpiece when there is an
incoming call (page 21).

Battery compartment cover
Remove to install or replace the
battery (page 7).

Microphone



Getting started

Quick reference guide - headset
Headset alert tones
Three quick beeps. • A VOLUME /+ – key is pressed when
the volume is already at its highest or
lowest setting.
• The headset is not registered and the
headset ON/OFF button is pressed.
• The headset has gone out of range from
the headset base during a call.
One short beep
every 20 seconds.

• Low battery warning.

One short beep
every 15 seconds.

• The call is muted.

One long beep
repeated.

• Call waiting alert tone.

One short beep.

• The headset ON/OFF key is pressed to
go on hook or off hook.



Getting started

Quick reference guide - headset charger

Charging cradle
Place the headset here for charging.

Power cord groove
Place the power cord here.

Power jack



Plug the small end
of the charger power
adapter here.

Getting started

Installation preparation

You must install and
charge the battery before
using the headset.

STOP!

See pages 6-8
for easy instructions.

If you subscribe to high-speed Internet service (DSL - digital
subscriber line) through your telephone lines, you must install
a DSL filter between the telephone line cord and the telephone
wall jack. The filter prevents noise and caller ID problems caused
by DSL interference. Please contact your DSL service provider for
more information about DSL filters.
For customer service or product information, visit our website at
www.telephones.att.com or call 1 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.
Avoid placing the headset charger 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 a washing
machine or work bench.



Getting started

Charger installation

1. Plug the small end of the
charger power adapter into
the power jack at the bottom
of the headset charger. Place
the power cord in the power
cord slot.

2. Plug the charger power
adapter into a power
outlet not controlled by a
wall switch.

IMPORTANT INFORMATION
1. Use only the power adapter supplied with this product. To
order a replacement power adapter, visit our website at
www.telephones.att.com, or call 1 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.
2. The 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.



Getting started

Battery installation
Install the battery as shown below. For optimal performance,
charge the headset battery for at least six hours before use. When
fully charged, the headset battery provides approximately 10 hours
of talk time or 5 days of standby time. When the headset is not in
use, recharge by returning it to the headset base.

1
1.	 If the battery compartment
������������������
cover
is attached, press on both sides
of the battery compartment cover
and lift it up and off.
2.	 Insert the battery into the battery
compartment with the label THIS
SIDE UP facing up.

2
3

5
4

3.	 Push the battery plug into the
connector inside the compartment
according to the color-coded label
and place the wires neatly inside
the compartment.
4.	 Insert the tab on the bottom of
the battery compartment cover
into the battery compartment.
5.	 Press down gently on the battery
compartment cover until it snaps
into place.

NOTE: Remove the ear hook from the headset (see page 14) before
battery replacement.



Getting started

Battery charging
After installing the battery, charge the headset by placing it on
the headset charger as shown below. Before registration, the
headset ON/OFF light flashes twice every five seconds whether
the headset is charging or not. After registration, the headset
ON/OFF light is on when the headset is charging.

Push

ON/OFF light

Insert

1.	 Insert the headset into
the charging cradle.

2.	 Push the headset downward
until the ON/OFF light on the
headset turns on.

IMPORTANT INFORMATION
Use only the supplied rechargeable battery or replacement battery
(model BT191545). To obtain a replacement battery, visit our website at
www.telephones.att.com or call 1 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.


Getting started

Registering the headset
You must register your new TL7600 headset with one of the
following models before use:
• AT&T DECT cordless headset TL7610/TL7611/TL7612
(see page �10).
	 You can register a maximum of two headsets to each
headset base.
-OR• A compatible AT&T DECT cordless telephone (see page 11).
You can register a maximum of two headsets to each
cordless telephone.
	 The telephone base recognizes and counts a headset the same
as a handset. Refer to your telephone user’s manual for the
maximum number of handsets that you can register to the
telephone base. If you have the maximum number of handsets
registered, you need to follow the deregistration information in
your telephone user’s manual.
	 Visit www.telephones.att.com/headsets for a list of
compatible telephones.
The first headset provided with your TL7610/TL7611/TL7612 has
a blue ON/OFF light. When you register a second headset, the
ON/OFF light of that headset turns orange to help you identify
the headsets.
You can only register the headset to one product at a time, so
the headset must not be already registered before registering to
a headset base or a cordless phone.
NOTE: See pages 25-26 for instructions on deregistration.



Getting started

Registering the headset
To register a headset to a TL7610/TL7611/TL7612 DECT
headset base
1. Make sure the battery is properly installed
in the headset (see page 7). The ON/OFF
light flashes twice every five seconds to
indicate the headset is not registered.
2. Place the headset in the headset base or
charger and allow it to charge for at least
five minutes before beginning registration.
3. Remove the headset from the headset
base or charger.
4. On the headset base, press and hold
the PAIR button until the MUTE light on
the headset base turns on (about four
seconds) and release the button.
5. Return the headset to the headset base
for registration.
Registration may take about 30 seconds to complete. The MUTE
light on the headset base turns off. The headset ON/OFF light
turns blue on the first headset registered and orange on the
second headset registered.
To verify registration was successful, press the headset ON/OFF
button and check for a dial tone.
If the registration was not successful, the ON/OFF light on the
headset flashes twice every five seconds. To reset the headset,
remove the headset from the headset charger and try the
registration process again.

10

Getting started

Registering the headset
To register the headset to an AT&T DECT cordless telephone base
1. Make sure the battery is properly installed in the
headset (see page 7). The ON/OFF light flashes
twice every five seconds to indicate the headset
is not registered.
2. Place the headset in the headset charger and
allow it to charge for at least five minutes
before beginning registration. Remove the
headset from the charger and then place the
headset back into the charger.
3. On the telephone base of the cordless phone,
press and hold the /HANDSET LOCATOR
button until the IN USE light turns on (about four
seconds) and release the button.
If your telephone base has no HANDSET
LOCATOR button:
Press and hold the HOLD button until the screen
displays Registering... Please wait, then release
the button.
-ORPress and hold the LOCATOR button until the screen
displays Registering handset..., then release the button.
4. The headset registers to the telephone base automatically; this
may take about 30 seconds to complete. The headset ON/OFF
light turns blue on the first headset registered and orange on the
second headset registered. To verify registration was successful,
press the headset ON/OFF button and check for a dial tone.
NOTES:
• If the registration fails, the ON/OFF light on the headset flashes twice every
five seconds. Reset the headset and try again. Remove the headset from
the headset base and press ON/OFF. Then place the headset back into the
headset base. Try the registration process again.
• For users of Synapse , SynJ , MS2085 Console, or MS2015 Deskset, refer
to the user’s manual of your respective model for registration instructions.
Synapse and SynJ are trademarks of Advanced American Telephones.

11

Getting started

Headset attachments
Over the ear hook
To attach the ear hook to the headset:
1. Remove any headset attachment connected to the headset.
2. Insert the earpiece into the ear hook, as shown in Figure 1.
3. Press the ear hook onto the earpiece, as shown in Figure 2.
4. Hook the headset onto the desired ear. Adjust the angle of
the headset until the microphone is pointing towards your
mouth, as shown in Figure 3.

Figure 1
Figure 2

Figure 3
NOTE: Firmly grip the earpiece with one hand whenever adjusting the
headset microphone up or down, as shown in Figure 3.

12

Getting started

Headset attachments
To adjust the headset to wear on the other ear:
1. Hold the headset in your hand. Lift the hook upward, as shown
in Figure 4.
2. Rotate the hook 180˚ in a counterclockwise direction, as
shown in Figure 5.
3. Push the hook downward, as shown in Figure 6.
4. Hook the headset onto the desired ear. Adjust the angle of the
headset until the microphone is pointing towards your mouth,
as shown in Figure 7.

180˚

Figure 5

Figure 4

Figure 7
Figure 6
13

Getting started

Headset attachments
To remove the ear hook from the headset:
Hold the headset with one hand and the ear hook with the other
hand. Lift the ear hook up until it separates from the earpiece.

14

Getting started

Headset attachments
Over the head band
To attach the headset to the headband for wearing on the left
or right ear:
1. Remove any headset attachment currently connected to
the headset.
2. Insert the earpiece into the loop of the ear pad, as shown in
Figure 8.
3. Gently press the earpiece inward until it clicks into place, as
shown in Figure 9.
4. Adjust the headband to fit your head. Adjust and rotate the
angle of the headset until the microphone is pointing towards
your mouth, as shown in Figure 10.

Ear pad

Figure 8
Figure 9

Figure 10
NOTES:
• To wear on the other ear, rotate the headset within the loop of the ear pad.
• Firmly grip the padded earpiece with one hand whenever adjusting the
headset microphone up or down, as shown in Figure 10.

15

Getting started

Headset attachments
To remove the headset from the headband:
Hold the headset with one hand and the headband's ear pad
with the other hand. Twist and pull the headset until it separates
from the ear pad.

16

Getting started

Headset attachments
Behind the neck band
When first shipped, the ear pad of the neckband is positioned to
be worn on the right ear.
To wear the headset on your left ear:
1. Remove the ear pad from the neckband by carefully pulling
the stem of the ear pad up through the rectangular socket at
the end of the neckband, as shown in Figure 11.

Ear pad

Figure 11
2.	Snap the stem of the ear pad into the rectangular socket at the
left end of the neckband.
To attach the headset to the neckband for wearing on the left
or right ear:
1. Remove any headset attachment currently connected to
the headset.
2. Insert the earpiece into the loop of the ear pad, as shown in
Figure 12.
3. Gently press the earpiece inward until it clicks into place, as
shown in Figure 13.

Figure 13

Figure 12
17

Getting started

Headset attachments
4. Place the neckband around your neck and over your ears.
5. Adjust and rotate the angle of the headset until the microphone
is pointing towards your mouth, as shown in Figure 14.

Figure 14
NOTE: Firmly grip the padded earpiece with one hand whenever adjusting
the headset microphone up or down, as shown in Figure 14.

To remove the neckband from the headset:
Hold the headset with one hand and the ear pad with the other
hand. Twist and pull the headset until it separates from the ear pad.

18

Operation

Headset operation
Making a call
If you registered the accessory cordless headset to a headset
base, see the user’s manual for your headset base model
TL7610/TL7611/TL7612 for additional instructions. Visit
www.telephones.att.com/manuals to view or
download the user's manuals.
If you registered the accessory cordless headset to an AT&T
DECT cordless telephone:
1. Follow the instructions in your telephone user’s manual for
making calls.
2. To switch to the headset, press ON/OFF on the headset at
any time.
3. After you switch the call to the headset����������������������
, you can hang up the
telephone and continue the call on the headset.

19

Operation

Headset operation
Answering a call on the headset
Press ON/OFF on the headset.
Ending a call on the headset
Press ON/OFF on the headset.
Auto off
A call ends automatically when you put the headset in the
headset charger.
NOTE: The headset does not have an external ringer. When you receive calls,
the headset earpiece plays a ring tone only heard through the earpiece.

20

Operation

Headset operation
Temporary ring tone silencing
Press MUTE/FLASH to temporarily silence the ring tone in
the headset earpiece. This silences the ring tone without
disconnecting the call. The next incoming call rings normally at
the preset volume.
NOTE: If you have more than one headset registered to the headset base,
both headsets receive the ring tone when there is an incoming call.
Pressing MUTE/FLASH on one headset will only silence the ring tone of that
particular headset.

Intercom calls and transfers
If you have registered your headset to an AT&T DECT cordless
telephone, follow the instructions in your telephone user’s
manual for intercom calls and transfers.
When the cordless handset prompts you to enter a handset number:
• If you have 1 registered handset, press # (pound key) on the
cordless handset.
• If you have 2 registered handsets, press #1 for headset 1 and
#2 for headset 2.
NOTE: You can only make intercom calls or transfers from an AT&T DECT
cordless handset to the DECT cordless headset.

21

Operation

Options while on calls
Volume control
To adjust the listening volume:
While on a call, press the VOLUME /+ – keys on the side of the
headset to adjust the listening volume.
NOTE: When the volume reaches the minimum or maximum setting, you
hear 3 quick beeps.

Call waiting
If you subscribe to call waiting service offered by your telephone
service provider, you hear a beep if there is an incoming call
while you are already on a call.
• If you have registered the TL7600 to a TL7610/TL7611/TL7612
headset base that is connected to a multiple line or digital
business corded telephone, you must answer call waiting using
the corded telephone base (see your telephone user’s manual
for instructions).
	 To end call waiting call, press ON/OFF on the headset and hang
up the corded handset by placing it in the telephone base.
• For all other installations, press and hold MUTE/FLASH on
the side of the headset to put your current call on hold and
answer the new call. You can press and hold MUTE/FLASH at
any time to switch back and forth between calls.
	 To end a call waiting call, press ON/OFF on the headset.

22

Operation

Options while on calls
Switching a call between handset and headset
If you have registered the TL7600 to a TL7610/TL7611/TL7612
headset base that is plugged into the telephone wall jack:
• To switch from the corded handset to a headset while on a
call, press ON/OFF on the headset, then place the corded
handset back into the telephone base.
• To switch from a headset to the corded handset while on call,
lift the corded handset from the telephone base, then press
ON/OFF on the headset.
• To switch from a cordless handset to a headset while on a call,
press ON/OFF on the headset, then hang up the cordless handset.
• To switch from a headset to a cordless handset while on a call,
press the button you use to answer a call, then press ON/OFF
on the headset.
If you have registered the TL7600 to a TL7610/TL7611/TL7612
headset base that is connected to a multiple line or
�����������
digital
business �����������������
corded telephone:
To switch between a headset and the corded handset while on a
call, press ON/OFF on the headset.
NOTE: For information about installation options, see the user’s manual
for your headset base model TL7610/TL7611/TL7612. Visit
www.telephones.att.com/manuals to view or download
the user manuals.

23

Operation

Options while on calls
Multiple headset/handset use
Headsets and handsets on the same phone line can join an
external call in progress. The number of headsets and handsets
that can join may be limited by your telephone system. See your
telephone user’s manual for more information.
Join a call with a headset by pressing ON/OFF on the headset. To
hang up, press ON/OFF or place the headset in the headset charger.
Mute
The mute function allows you to turn off the headset microphone.
You can hear the caller, but the caller cannot hear you.
To mute the call:
•	 Press MUTE/FLASH on the headset to turn off the headset
microphone. When mute is on, there is a short beep every 15
seconds until mute is turned off.
To end mute:
•	 Press MUTE/FLASH on the headset again and resume speaking.

24

Operation

Replacing a headset
You may need to deregister your headsets if:
You have two registered headsets and need to replace one of them.
-ORYou wish to change the designated headset number and/or the
colors of the ON/OFF lights of your registered headsets.
You must first deregister both headsets, and then register each
headset you wish to use again, one at a time.
Please read carefully through all the instructions before
beginning the deregistration process.
To deregister all headsets from your TL7610/TL7611/TL7612
headset base
This procedure deregisters all the items registered to the headset base.
1. Press and hold PAIR on the TL7610/TL7611/TL7612 headset
base until the MUTE light on the headset base turns on and starts
to flash (at least 10 seconds), then release the PAIR button.
2. Immediately press and release PAIR again. You must press
PAIR while the MUTE light is still flashing. (The light flashes
for about seven seconds. If the light stops flashing, start again
with step one above.)
3. Enter the following code on the headset by pressing the keys in
this order: VOLUME /+, MUTE, VOLUME /–, MUTE,
VOLUME /+, VOLUME /–, MUTE. When you see the MUTE
light on the headset base turn off and the headset(s) ON/OFF
light flashes twice every five seconds, the deregistration is
successful. Repeat this step on the other headset if there is any.
4.	To register the headset(s) to the headset base again, follow
the registration instructions on page 10.
NOTES:
• If the deregistration process was not successful, you may need to reset
the system and try again. Remove the headset from the headset base and
press ON/OFF. Place the headset back into the headset base. You may
also reset by unplugging the power from the headset base, then waiting a
few seconds, and plugging it back in.
• You cannot deregister the headset(s) if another system headset is in use.

25

Operation

Replacing a headset
To deregister all headsets from an AT&T cordless
telephone base
This procedure deregisters all the headsets and handsets
registered to the cordless phone.
1. Press and hold / HANDSET LOCATOR �����������������
on the telephone
base of the cordless phone until the IN USE light on the
telephone base turns on and starts to flash (at least 10
seconds), 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 for about 7 seconds. If
the light stops flashing, start again with step one above.) This
process may take up to 10 seconds to complete.
If your telephone base has no HANDSET LOCATOR button:
i. Press and hold the FLASH button until the screen displays
Deregister all handsets?, then release the button.
ii. Press the YES softkey.
-ORi. Press and hold the LOCATOR button until the screen
displays Registering handset... followed by Deregister all
handsets?, then release the button.
ii. Immediately press and release MENU/SELECT again.
3. Enter the following code on the headset by pressing the keys in
this order: VOLUME /+, MUTE, VOLUME /–, MUTE,
VOLUME /+, VOLUME /–, MUTE. ����
The ON/OFF light on the
headset flashes twice every five seconds if the deregistration
is successful.
NOTES:
• See your telephone user’s manual to register the handsets again.
• See page 11 of this manual to register a headset again.

26

Appendix

Troubleshooting
If you have difficulty with your headset, please try the
suggestions below. For customer service, visit our website at
www.telephones.att.com, or call 1 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.
My headset doesn’t work at all.
• Make sure the power cord is securely plugged in.
• Make sure the battery is securely installed in the cordless headset.
• Make sure the telephone line cord is securely and firmly plugged
into the headset or telephone base and the telephone wall jack.
• Charge the battery in the cordless headset for at least 6 hours.
For optimum daily performance, return the cordless headset to
its charger when not in use.
• Reset the headset. Power off the headset and then power it on.
• Reset the headset base or charger. Unplug the unit’s electrical
power. Wait for approximately 15 seconds, then plug it back in.
Allow up to one minute for the cordless headset and headset
base or charger to reset.
• You may need a new battery. Please refer to page 7 of this
user’s manual.
I cannot get a dial tone.
• Try all the suggestions above.
• Move the cordless headset closer to the headset or telephone
base. You might have moved out of range.
• If the previous suggestions do not work, disconnect the
headset or telephone base from the telephone jack and
connect a different phone. If there is no dial tone on that
phone either, the problem is in your wiring or telephone
service. Contact your telephone service provider.
• Your telephone line cord might be defective. Try installing a
new telephone line cord.
27

Appendix

Troubleshooting
I am getting a buzzing sound on my headset or corded base
speakerphone.
• Your telephone may experience interference from the headset.
To overcome this problem, move the headset base at least 12
inches away from the telephone.
• Other electronic products such as HAM radios and other DECT
phones can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
I cannot dial out.
• Try all the suggestions above.
• Make sure you have a dial tone before dialing. The cordless
headset may take a second or two to find the headset or
telephone base and produce a dial tone. This is normal. Wait
an extra second before dialing.
• Eliminate any background noise. Noise from a television, radio
or other appliances may cause the headset to not dial out
properly. If you cannot eliminate background noise, try dialing
from another room with less background noise.
• If the other phones in your home are having the same
problem, the problem is in your wiring or local service. Contact
your telephone service provider (charges may apply).
The other party cannot hear my voice during a call.
• If you registered the accessory cordless headset to a headset
base, try adjusting the speaking volume setting on the headset
base. See the volume section of the user’s manual for your
headset base model TL7610/TL7611/TL7612 for additional
troubleshooting. Visit www.telephones.att.com/manuals
to view or download the user manuals.

28

Appendix

Troubleshooting
My cordless headset isn’t performing normally.
• Make sure the power cord is securely plugged into the
headset base or charger. Plug the unit into a different, working
electrical outlet not controlled by a wall switch.
• Move the cordless headset closer to the headset or telephone
base. You might have moved out of range.
• Reset the headset base or charger. Unplug the unit’s electrical
power. Wait for 15 seconds, then plug it back in. Allow up
to one minute for the cordless headset and headset base or
charger to reset.
• Other electronic products such as HAM radios and other DECT
phones can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
I want to use my headset with a different headset base or
cordless telephone.
• You need to deregister (see pages 25-26) the headset from
the current headset or telephone base and then register (see
pages 9-11) it to a new headset base or cordless telephone.
The batteries do not hold a charge.
• Make sure that the headset battery is installed and securely
plugged into the connector.
• If the cordless headset is in the headset base or charger and
the ON/OFF light on the headset does not come on, refer to
The ON/OFF light on the headset is off while charging in
this Troubleshooting guide (page 32).
• Charge the battery in the cordless headset for at least 6 hours.
For optimum daily performance, return the cordless headset to
the headset or charger when not in use.

29

Appendix

Troubleshooting
• You may need a new battery. Please refer to the
Battery charging section on page 8.
• Your headset might be defective. Please refer to the
Limited warranty section on pages 45-48 for further
instructions.
I get noise, static, or weak signal even when I’m near the
headset or telephone base.
• If you subscribe to high-speed Internet service (DSL - digital
subscriber line) through your telephone lines, you must
install a DSL filter between the telephone line cord and the
telephone wall jack. The filter prevents noise and caller ID
problems caused by DSL interference. Please contact your DSL
service provider for more information about DSL filters.
• You may be able to improve the performance of your cordless
headset by installing your new headset base farther from any
other existing cordless telephone system.
• Other electronic products such as HAM radios and other DECT
phones can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
• Do not install this headset near a microwave oven or on
the same electrical outlet. You may experience decreased
performance while the microwave oven is operating.
• If your headset is plugged in with a modem or a surge
protector, plug the headset (or modem/surge protector) into
a different location. If this doesn't solve the problem, relocate
your headset or modem farther apart from one another, or use
a different surge protector.
• Relocate your headset or telephone base to a higher location.
You may experience better reception by elevating the headset
or telephone base.
• If the other phones in your home are having the same
problem, the problem is in your wiring or telephone service.
Contact your telephone service provider (charges may apply).
30

Appendix

Troubleshooting
I hear other calls while using my headset.
• Disconnect the headset or telephone base from the telephone
jack, and plug in a different telephone. If you still hear other
calls, the problem is probably in your building’s wiring or local
service. Call your telephone service provider.
I cannot hear a ring tone from the headset when there is an
incoming call.
• If you have pressed MUTE/FLASH on the headset when it is
ringing, it mutes the ring tone of the headset. The ring tone
resumes on the next call.
• You may have too many extension phones on your telephone
line to allow all of them to ring simultaneously. Try unplugging
some of the other phones.
• The layout of your home or office might be limiting the
operating range. Try moving the headset or telephone base to
another location, preferably on an upper floor.
• Test a working phone at the phone jack. If another phone has the
same problem, the problem is the phone jack, wiring or service.
Contact your telephone service provider (charges may apply).
• Other electronic products such as HAM radios and other DECT
phones can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
• Install the battery again, and place the cordless headset in
the headset base or charger. Wait for the cordless headset to
reestablish its connection with the headset or telephone base.
Allow up to one minute for this to take place.
• Your telephone line cord might be defective. Try installing a
new telephone line cord.

31

Appendix

Troubleshooting
My calls cut in and out while I’m using my cordless headset.
• Other electronic products such as HAM radios and other DECT
phones can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
• Do not install this headset near a microwave oven or on
the same electrical outlet. You may experience decreased
performance while the microwave oven is operating.
• If your headset is plugged in with a modem or surge protector,
plug the headset (or modem/surge protector) into a different
location. If this doesn't solve the problem, relocate your
headset or modem farther apart from one another, or use a
different surge protector.
• Relocate your headset or telephone base to a higher location.
You may experience better reception by elevating the base.
• If the other phones in your home are having the same
problem, the problem is in your wiring or local service. Contact
your telephone service provider (charges may apply).
The ON/OFF light on the headset is off while charging.
• Make sure the power and line cords are plugged in correctly
and securely.
• Make sure that the battery connector is securely plugged into
the cordless headset.
• Push the headset downwards in the charger until the ON/OFF
light on the headset turns on.
• Unplug the unit’s electrical power. Wait for 15 seconds,
then plug it back in. Allow up to one minute for the cordless
headset and headset base or charger to reset.
• Clean the cordless headset and headset base or charger
charging contacts each month using a pencil eraser or cloth.
32

Appendix

Troubleshooting
• Your headset or headset base might be defective. Please refer
to the Limited warranty section on pages 45-48 for further
instructions.
I cannot register the headset.
For registration to a cordless telephone:
• You must be using a compatible AT&T DECT 6.0 cordless
telephone. Visit www.telephones.att.com/headsets
for a list of compatible telephones.
• Your cordless telephone has a maximum number of handsets
that may be registered to the telephone base. In terms of
registration, the telephone base treats a headset like a handset.
Check the Adding and registering handsets section of your
telephone user’s manual for the maximum number of handsets
allowed. If the maximum number of handsets are already
registered, you need to follow the deregistration instructions in
the telephone user’s manual, then register the handsets and/or
headsets you wish to use again, one at a time.
For registration to a headset base:
• You can register a maximum of two headsets to the headset
base. If you already have two headsets registered to the
headset base, you must deregister all the headset(s) before
you register a different headset.
• If you registered the accessory cordless headset to a headset
base, see the user’s manual for your headset base model
TL7610/TL7611/TL7612 for additional troubleshooting. Visit
www.telephones.att.com/manuals to view or
download the user's manuals.

33

Appendix

Troubleshooting
Common cure for electronic equipment.
If the unit does not seem to be responding normally, try putting
the cordless headset in its base or charger. If it does not seem to
respond, do the following (in the order listed):
• Disconnect the power to the headset charger and the headset
or telephone base.
• Disconnect the cordless headset battery.
• Wait a few minutes.
• Connect power to everything you unplugged.
• Install the battery again, and place the cordless headset into
the headset base or charger.
• Wait for the cordless headset to reestablish its connection
with the headset or telephone base. Allow up to one minute
for this to take place.

34

Appendix

Important safety information
This symbol is to alert you to important operating or
servicing instructions that may appear in this user’s manual.
Always follow basic safety precautions when using this product
to reduce the risk of injury, fire, or electric shock.
Safety information
• Read and understand all instructions in the user’s manual.
Observe all markings on the product.
• Avoid using a headset during a thunderstorm. There may be
a slight chance of electric shock from lightning.
• Do not use a headset in the vicinity of a gas leak. Under
certain circumstances, a spark may be created when the
adapter is plugged into the power outlet, or when the headset
is replaced in its cradle. This is a common event associated with
the closing of any electrical circuit. The user should not plug
the headset base into a power outlet, and should not put a
charged headset into the cradle, if the headset base is located
in an environment containing concentrations of flammable or
flame-supporting gases, unless there is adequate ventilation.
A spark in such an environment could create a fire or explosion.
Such environments might include: medical use of oxygen
without adequate ventilation; industrial gases (cleaning solvents;
gasoline vapors; etc.); a leak of natural gas; etc.
• Do not use this product near water, or when you are wet.
For example, do not use it in a wet basement or shower, or
next to a swimming pool, bathtub, kitchen sink, or laundry tub.
Do not use liquids or aerosol sprays for cleaning. If the product
comes in contact with any liquids, unplug any line or power
cord immediately. Do not plug the product back in until it has
dried thoroughly.
• Install this product in a protected location where no one can
trip over any line or power cords. Protect cords from damage
or abrasion.
35

Appendix

Important safety information
• If this product does not operate normally, see the
Troubleshooting section on pages 27-34 of this user’s
manual. If you cannot solve the problem, or if the product is
damaged, refer to the Limited warranty section on
pages 45-48. Do not open this product except as may be
directed in your user’s manual. Opening the product or
reassembling it incorrectly may expose you to hazardous
voltages or other risks.
• Replace batteries only as described in your user’s manual. Do
not burn or puncture batteries — they contain caustic chemicals.
• 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.
Caution: Use only the power adapter provided with this product. To
obtain a replacement, visit our website at
www.telephones.att.com or call 1 (800) 222-3111.
In Canada dial 1 (866) 288-4268.

Especially about cordless headsets
• Privacy: The same features that make a cordless headset
convenient create some limitations. Telephone calls are
transmitted between the headset base and the headset by
radio waves, so there is a possibility that your cordless headset
conversations could be intercepted by radio receiving equipment
within range of the cordless headset. For this reason, you
should not think of cordless headset conversations as being
as private as those on corded telephones.
• Electrical power: The headset base of this cordless headset
must be connected to a working electrical outlet which is not
controlled by a wall switch. Calls cannot be made from the
headset if the headset base is unplugged or switched off, or
if the electrical power is interrupted.
36

Appendix

Important safety information
• Potential TV interference: Some cordless headsets operate
at frequencies that may cause interference to TVs and VCRs.
To minimize or prevent such interference, do not place the
headset base of the cordless headset near or on top of a TV
or VCR. If interference is experienced, moving the cordless
headset farther away from the TV or VCR will often reduce or
eliminate the interference.
• Rechargeable batteries: This product contains nickelcadmium, nickel-metal hydride or lithium-ion rechargeable
batteries. Exercise care in handling batteries in order not to
create a short circuit with conductive material such as rings,
bracelets, and keys. The battery or conductor may overheat
and cause harm. Observe proper polarity between the battery
and the battery charger.
• Lithium-ion rechargeable batteries: Dispose of these
batteries in a safe manner. Do not burn or puncture. Like
other batteries of this type, if burned or punctured, they could
release caustic material which could cause injury.
The RBRC™ Seal means that the manufacturer is voluntarily
participating in an industry program to collect and recycle
lithium-ion rechargeable batteries when taken out of service
within the United States. These batteries may be taken to a
participating local retailer of replacement batteries or recycling
center. Or you may call 1-800-8-BATTERY for locations
accepting spent Li-ion batteries.

CAUTION
• Use only the batteries provided or their equivalent.
• Change this product’s batteries only in accordance with the
instructions and limitations specified in this manual.
• As with any batteries, do not allow conductive materials such
as rings, bracelets, or keys to come in contact with the metallic
parts of the battery. The battery or conductor may overheat
and cause harm.
37

Appendix

Important safety information
• Do not open or damage the batteries. Released electrolyte
is corrosive and may cause injury to the eyes or skin. The
electrolyte may be toxic if swallowed.
• Do not dispose of the batteries in a fire. Check with local
waste management codes for special disposal instructions.
• To prevent fire or shock hazard, do not expose this product to
water or any type of moisture.
• Observe proper polarity orientation between the battery and
metallic contacts.
• Do not disassemble your telephone. There are no user-serviceable
parts inside. Refer to qualified service personnel for servicing.
Precautions for users of implanted cardiac pacemakers
Cardiac pacemakers (applies only to digital cordless telephones):
Wireless Technology Research, LLC (WTR), an independent
research entity, led a multidisciplinary evaluation of the
interference between portable cordless telephones and implanted
cardiac pacemakers. Supported by the U.S. Food and Drug
Administration, WTR recommends to physicians that:
Pacemaker patients
• Should keep cordless telephones at least six inches from
the pacemaker.
• Should NOT place cordless telephones directly over the
pacemaker, such as in a breast pocket, when it is turned ON.
• Should use the cordless telephone at the ear opposite the pacemaker.
WTR’s evaluation did not identify any risk to bystanders with
pacemakers from other persons using cordless telephones.

SAVE THESE INSTRUCTIONS
38

Appendix

Maintenance
Taking care of your headset
• Your cordless headset contains sophisticated electronic parts,
so it must be treated with care.
• Avoid rough treatment.
• Place the headset down gently. Save the original packing
materials to protect your headset if you ever need to ship it.
Avoid water
• Your headset can be damaged if it gets wet. Do not use the
headset outdoors in the rain, or handle it with wet hands. Do
not install the headset base near a sink, bathtub or shower.
Electrical storms
• Electrical storms can sometimes cause power surges harmful to
electronic equipment. For your own safety, take caution when
using electrical appliances during storms.
Cleaning your headset
• Your headset has a durable plastic casing that should retain
its luster for many years. Clean it only with a soft cloth slightly
dampened with water or a mild soap.
• Do not use excess water or cleaning solvents of any kind.

Remember that electrical appliances can cause serious injury if used when
you are wet or standing in water. If the headset base should fall into water,
DO NOT RETRIEVE IT UNTIL YOU UNPLUG THE POWER CORD AND TELEPHONE
LINE CORDS FROM THE WALL. Then pull the unit out by the unplugged cords.

39

Appendix

FCC Part 68 and ACTA
This equipment complies with Part 68 of the FCC rules and with
technical requirements adopted by the Administrative Council for
Terminal Attachments (ACTA). The label on the back or bottom of
this equipment contains, among other things, a product identifier
in the format US: AAAEQ##TXXXX. This identifier must be provided
to your local telephone company upon request.
The plug and jack used to connect this equipment to premises
wiring and the telephone network must comply with applicable
Part 68 rules and technical requirements adopted by 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. An RJ11 jack should normally be used
for connecting to a single line and an RJ14 jack for two lines. See
Installation Instructions in the user’s manual.
The Ringer Equivalence Number (REN) is used to determine how
many devices you may connect to your telephone line and still
have them ring when you are called. The REN for this product is
encoded as the 6th and 7th characters following the US: in the
product identifier (e.g. if ## is 03, the REN is 0.3). In most, but
not all areas, the sum of all RENs should be five (5.0) or less. For
more information, please contact your local telephone company.
This equipment may not be used with Party Lines. If you have
specially wired alarm dialing equipment connected to your
telephone line, ensure the connection of this equipment does not
disable your alarm equipment. If you have questions about what
will disable alarm equipment, consult your telephone company or
a qualified installer.
If this equipment is malfunctioning, it must be unplugged from
the modular jack until the problem has been corrected. Repairs to
this telephone equipment can only be made by the manufacturer
or its authorized agents. For repair procedures, follow the
instructions outlined under the Limited Warranty.
40

Appendix

FCC Part 68 and ACTA
If this equipment is causing harm to the telephone network, the
telephone company may temporarily discontinue your telephone
service. The telephone company is required to notify you before
interrupting service. If advance notice is not practical, you will be
notified as soon as possible. You will be given the opportunity
to correct the problem and the telephone company is required
to inform you of your right to file a complaint with the FCC. Your
telephone company may make changes in its facilities, equipment,
operation, or procedures that could affect the proper functioning
of this product. The telephone company is required to notify you
if such changes are planned.
If this product is equipped with a corded or cordless handset, it is
hearing aid compatible.
If this product has memory dialing locations, you may choose to
store emergency telephone numbers (e.g. police, fire, medical)
in these locations. If you do store or test emergency numbers,
please:
Remain on the line and briefly explain the reason for the call
before hanging up.
Perform such activities in off-peak hours, such as early morning
or late evening.

41

Appendix

FCC Part 68 and ACTA
Industry Canada
Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device
must accept any interference, including interference that may
cause undesired operation.
The term ‘’IC:‘’ before the certification/registration number only
signifies that the Industry Canada technical specifications were met.
The Ringer Equivalence Number (REN) for this terminal equipment
is 0.1. The REN is an indication of the maximum number of
devices allowed to be connected to a telephone interface. The
termination on an interface may consist of any combination of
devices subject only to the requirement that the sum of the RENs
of all the devices does not exceed five.
This product meets the applicable Industry Canada technical
specifications.

42

Appendix

FCC Part 15
This equipment has been tested and found to comply with the
requirements for a Class B digital device under Part 15 of the
Federal Communications Commission (FCC) rules.
These requirements are intended 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.
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.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician
for help.
Changes or modifications to this equipment not expressly
approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
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. Privacy of communications may not be
ensured when using this device.

43

Appendix

FCC Part 15
To ensure safety of users, the FCC has established criteria for the
amount of radio frequency energy that can be safely absorbed
by a user or bystander according to the intended usage of the
product. This product has been tested and found to comply with
the FCC criteria. The headset may be safely held against the ear
of the user. The headset base shall be installed and used such
that parts of the user’s body other than the hands are maintained
at a distance of approximately 20 cm (8 inches) or more.
This Class B digital apparatus complies with Canadian ICES-003.

44

Appendix

Limited warranty
The AT&T brand is used under license - any repair, replacement or
warranty service, and all questions about this product should be
directed to: In the United States of America, visit
www.telephones.att.com or call 1 (800) 222-3111.
In Canada, call 1 (866) 288-4268.
1.	What does this limited warranty cover?
The manufacturer of this AT&T branded product warrants to the
holder of a valid proof of purchase (“CONSUMER” or “you”) that
the product and all accessories provided in the sales package
(“PRODUCT”) are free from defects in material and workmanship,
pursuant to the following terms and conditions, when installed
and used normally and in accordance with the PRODUCT
operating instructions. This limited warranty extends only to the
CONSUMER for products purchased and used in the United States
of America and Canada.
2.	What will be done if the PRODUCT is not free from defects
in materials and workmanship during the limited warranty
period (“materially defective PRODUCT”)?
During the limited warranty period, the manufacturer’s authorized
service representative will repair or replace at the manufacturer’s
option, without charge, a materially defective PRODUCT. If the
manufacturer repairs the PRODUCT, they may use new or refurbished
replacement parts. If the manufacturer chooses to replace the
PRODUCT, they may replace it with a new or refurbished PRODUCT
of the same or similar design. The manufacturer will retain
defective parts, modules, or equipment. Repair or replacement
of the PRODUCT, at the manufacturer’s option, is your exclusive
remedy. The manufacturer will return repaired or replacement
products to you in working condition. You should expect the
repair or replacement to take approximately 30 days.

45

Appendix

Limited warranty
3.	How long is the limited warranty period?
The limited warranty period for the PRODUCT extends for ONE (1)
YEAR from the date of purchase. If the manufacturer repairs or
replaces a materially defective PRODUCT under the terms of this
limited warranty, this limited warranty also applies to repaired or
replacement PRODUCT for a period of either (a) 90 days from the
date the repaired or replacement PRODUCT is shipped to you or
(b) the time remaining on the original one-year limited warranty;
whichever is longer.
4.	What is not covered by this limited warranty?
This limited warranty does not cover:
• PRODUCT that has been subjected to misuse, accident,
shipping or other physical damage, improper installation,
abnormal operation or handling, neglect, inundation, fire,
water, or other liquid intrusion; or
• PRODUCT that has been damaged due to repair, alteration,
or modification by anyone other than an authorized service
representative of the manufacturer; or
• PRODUCT to the extent that the problem experienced is
caused by signal conditions, network reliability or cable or
antenna systems; or
• PRODUCT to the extent that the problem is caused by use with
non-AT&T accessories; or
• PRODUCT whose warranty/quality stickers, PRODUCT serial
number plates or electronic serial numbers have been
removed, altered or rendered illegible; or
• PRODUCT purchased, used, serviced, or shipped for repair from
outside the United States of America or Canada, or used for
commercial or institutional purposes (including but not limited
to products used for rental purposes); or
• PRODUCT returned without valid proof of purchase (see item 6
below); -or46

Appendix

Limited warranty
• Charges for installation or setup, adjustment of customer
controls, and installation or repair of systems outside the unit.
5.	How do you get warranty service?
To obtain warranty service in the United States of America, visit
www.telephones.att.com or call 1 (800) 222-3111. In
Canada, call 1 (866) 288-4268.
NOTE: Before calling for service, please review the user’s manual;
a check of the PRODUCT controls and features may save you a
service call.
Except as provided by applicable law, you assume the risk of loss
or damage during transit and transportation and are responsible
for delivery or handling charges incurred in the transport of the
PRODUCT(s) to the service location. The manufacturer will return
repaired or replaced PRODUCT under this limited warranty to
you. Transportation, delivery or handling charges are prepaid.
The manufacturer assumes no risk for damage or loss of the
PRODUCT in transit. If the PRODUCT failure is not covered by this
limited warranty, or proof of purchase does not meet the terms
of this limited warranty, the manufacturer will notify you and will
request that you authorize the cost of repair prior to any further
repair activity. You must pay for the cost of repair and return
shipping costs for the repair of products that are not covered by
this limited warranty.
6.	What must you return with the PRODUCT to get warranty service?
You must:
a. Return the entire original package and contents including the
PRODUCT to the service location along with a description of
the malfunction or difficulty; and
b. Include “valid proof of purchase” (sales receipt) identifying
the PRODUCT purchased (PRODUCT model) and the date of
purchase or receipt; and
c. Provide your name, complete and correct mailing address, and
telephone number.
47

Appendix

Limited warranty
7.	Other limitations
This warranty is the complete and exclusive agreement between
you and the manufacturer of this AT&T branded PRODUCT. It
supersedes all other written or oral communications related to
this PRODUCT. The manufacturer provides no other warranties
for this PRODUCT. The warranty exclusively describes all of the
manufacturer’s responsibilities regarding the PRODUCT. There
are no other express warranties. No one is authorized to make
modifications to this limited warranty and you should not rely on
any such modification.
State/Provincial Law rights: This warranty gives you specific legal
rights, and you may also have other rights which vary from state
to state or province to province.
Limitations: Implied warranties, including those of fitness for a
particular purpose and merchantability (an unwritten warranty
that the PRODUCT is fit for ordinary use) are limited to one
year from date of purchase. Some states/provinces do not
allow limitations on how long an implied warranty lasts, so
the above limitation may not apply to you. In no event shall
the manufacturer be liable for any indirect, special, incidental,
consequential, or similar damages (including, but not limited to
lost profits or revenue, inability to use the PRODUCT or other
associated equipment, the cost of substitute equipment, and
claims by third parties) resulting from the use of this PRODUCT.
Some states/provinces do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation or
exclusion may not apply to you.

Please retain your original sales receipt as proof of purchase.

48

Appendix

Technical specifications
RF frequency band

1921.536MHz - 1928.448MHz

Channels

5

Operating temperature

32°F - 122°F
0°C - 50°C

Headset voltage

3.2 - 4.2VDC

Charger voltage
(AC adapter output)

6VDC @200mA

Replacement battery

3.7V 240mAH

DECT 6.0 digital technology
Digital Enhanced Cordless Telecommunications (DECT) 6.0 is a new
frequency band that transmits your voice across multiple channels.
This technology provides superior quality of voice and sound, high
protection against wiretapping and better range than 2.4 GHz and
5.8 GHz phone systems, while not interfering with wireless routers.
Operating range
This cordless headset operates within the maximum power
allowed by the Federal Communications Commission (FCC).
Even so, this headset and headset base can communicate over
only a certain distance — which can vary with the locations of
the headset base and headset, the weather, and the construction
of your home or office.
Extended range and clarity
Experience the best in long-range coverage and clarity, provided by
a unique antenna design and advances in noise-filtering technology.
The TL7600 is a fully cordless DECT 6.0 headset offering a range
of up to 500 feet. Open range test was performed by Wyle
Laboratories, an independent commercial test facility. “Up to 500
feet” cordless headset range refers to the maximum open field
range. Actual range may vary depending on intervening obstacles.
Sound level protection technology conforms to the current
regulations and is used to filter out the loud and high-pitched noises.
49

Index

Index
A
Alert tone 3
Answer a call 20
Auto off 20

M
Maintenance 39
Make a call 19
Multiple headset/
handset use 24
Mute 24

B
Battery charging 8
Behind the neck band 17–18

O
Over the ear hook 12–14
Over the head band 15–16

C
Call waiting 22

Q
Quick reference guide
Headset 1–3
Headset charger 4

D
Deregister all headsets 25–26
Dial tone 27
E
End a call 20

R
Register a headset 9
Replace a headset 25

F
FCC Part 15 43–44
FCC Part 68 and ACTA 40–42

S
Switch a call 23
T
Technical specifications 49
Temporary ring tone
silencing 21
Troubleshooting 27–34

I
Important safety information
35–38
Installation
battery 7
charger 6
Intercom 21

V
Volume 22

L
Lights 1
Limited warranty 45–48
50

www.telephones.att.com

© 2008-2012 Advanced American Telephones. All Rights Reserved.
AT&T and the AT&T logo are trademarks of AT&T Intellectual Property licensed to
Advanced American Telephones, San Antonio, TX 78219.
Synapse and SynJ are trademarks of Advanced American Telephones.
Printed in China. Issue 12 AT&T 10/12.



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