AT&T TL7900 User manual
Congratulations
on your purchase of this AT&T product.
Enjoy up to 12 hours of hands-free talk time and crystal-
clear sound quality with the AT&T TL7900 DECT 6.0 Accessory
Cordless Headset. Pair it wirelessly with AT&T TL7910/TL7912
and other compatible DECT phones. Easy one-button answer,
volume and mute controls enhance wireless freedom, while a
range of up to 500 feet maximizes mobility. A magnetic charger
in the cradle ensures the headset fits and charges securely—so
you’ll never run out of battery during long calls. Lightweight and
comfortable, the headset offers multiple wearing styles: over the
ear, over the head or behind the neck.
Before using this AT&T product, please read the Important
safety information section on pages 35-37 of this manual.
Please thoroughly read this user’s manual for 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.
This telephone meets the California Energy Commission
regulations for energy consumption. Your telephone is set up to
comply with the energy-conserving standards right out of the
box. No further action is necessary.
Visit
www.telephones.att.com/headsets for a complete list
of AT&T phones that have been tested and found to be
compatible with the TL7900.
Model number: TL7900
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 this product for warranty service.
Telephones identified with this logo have reduced noise and
interference when used with most T-coil equipped hearing
aids and cochlear implants. The TIA-1083 Compliant Logo is
a trademark of the Telecommunications Industry Association.
Used under license.
© 2016 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.
Cordless headset
with earbud attached
Headset charger
Battery with battery
compartment cover attached
User's manual
User’s manual
TL7900
DECT 6.0 cordless headset
Five earbuds
Behind the neck band
Headset charger
power adapter
Quick start guide
Quick start guide
TL7900
DECT 6.0 cordless headset
Three over the ear hooks Two over the head bands
User’s manual
TL7900
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...................................... 5
Battery installation..................... 6
Headset charger installation
and battery charging............. 7
Adding and registering
headsets ...................................... 8
Register a headset to the
TL7910/TL7912
headset base............................. 9
Register a headset to
an AT&T DECT cordless
telephone base .......................10
Deregistering headset..............12
Deregister all headsets
from the TL7910/TL7912
headset base..............................12
Deregister all headsets
from an AT&T DECT
cordless telephone base ....13
Headset attachments............... 14
Earbud..........................................14
Over the ear hook..................15
Over the head band..............18
Behind the neck band.......... 20
Operation
Headset operation ..................... 23
Power on/off the
headset........................................23
Make a call.................................23
Answer a call............................23
End a call....................................23
Voice command.......................24
Headset ringer ......................... 24
Caller ID announce................25
Temporary ringer
silencing......................................25
Call waiting................................25
Options while on calls.............26
Volume control........................26
Mute ..............................................26
Multiple headsets use ..........27
Appendix
Troubleshooting ..........................28
Maintenance..................................34
Important safety
information................................35
Safety information..................35
Especially about cordless
headsets .....................................36
Precautions for users
of implanted cardiac
pacemakers...............................37
Pacemaker patients...............37
For C-UL compliance................ 38
Mesures de sécurité
importantes...............................38
FCC Part 68 and ACTA.............42
FCC Part 15...................................44
California Energy Commission
battery charging testing
instructions................................45
Limited warranty.........................46
Technical specifications ..........49
DECT 6.0 digital
technology.................................49
Operating range......................49
Extended range and
clarity ...........................................49
Index
Index.................................................50
1
light status
Red On when the headset is charging in the
headset charger.
Flashes every 10 seconds to indicate the battery is
low when the headset is not in the headset charger.
Flashes three times to indicate the headset is
powering off.
•
•
•
Blue On when a fully charged and registered headset is
in the headset charger.
Flashes three times to indicate the headset is
powering on.
Flashes twice every three seconds when the headset
is in use.
Flashes four times every four seconds when there is
an incoming call.
Flashes every 10 seconds when a fully charged
and registered headset in idle mode is out of the
headset charger.
•
•
•
•
•
Red and blue Flashes slowly when the headset is not registered.
Flashes quickly when the headset is trying to
register to a headset base or telephone base.
•
•
Off The battery is dead.
No battery is installed.
The headset is powered off.
•
•
•
Quick reference guide - headset
Headset lights
(On/off button and light)
Press to make, answer or end a call
(page 23).
Getting started
Getting started
2
Quick reference guide - headset
VOL+/VOL-
Slide the volume switch
to the right or left to
adjust the headset
ringer volume while
in idle mode, or the
listening volume while
on a call (page 26).
Earpiece
Microphone
The microphone
incorporates noise
canceling technology
for clearer calls.
FLASH
Press to answer an
incoming call when you
receive a call waiting alert
during a call (page 25).
Battery with cover
attached
Remove to replace the
battery (page 6).
MUTE/VOICE
Press to mute the microphone
during a call (page 26).
Press to mute the ringer in
the earpiece when there is an
incoming call (page 24).
Press to initiate the voice
command feature when in idle
mode. (It is only available when
TL7900 is registered to a TL7910/
TL7912 headset base.) (page 24)
Getting started
3
One long beep The headset is ready to take your voice
command. (The voice command feature is
only available when TL7900 is registered to
a TL7910/TL7912 headset base. You have to
install the AT&T Softphone Call Manager
before using this feature. For installation and
operation instructions of the software, refer
to the Installation and Operation Guide
which can be found in the CD-ROM in the
TL7910/TL7912 package. You may also visit
www.telephones.att.com/downloads
to download it.)
•
One short beep every
30 seconds
The microphone is muted.•
Two beeps Error alert tone.
The ringer volume has reached its lowest
setting.
The listening volume has reached its highest
or lowest setting.
The speaking volume has reached its highest
or lowest setting.
Any key is pressed while the headset is out
of range.
•
•
•
•
•
Two low beeps Call waiting alert tone.•
Two rapid beeps
every 20 seconds
Low battery warning.•
Three rising beeps A conference call has started.•
Three rapid beeps
every 20 seconds
The headset is out of range.
The headset is not yet registered.
•
•
Three rapid beeps The headset is powering on or off.•
Quick reference guide - headset
Headset alert tones
Getting started
4
Quick reference guide - headset charger
Magnetic charging mount
Place the headset here for
charging.
Power cord slot
Route the power
cord through the
slot.
Power jack
Table of contents
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