AT&T EL51100 User manual

User’s manual
EL51100/EL51110
DECT 6.0 cordless telephone
with caller ID/call waiting

© 2009-2011 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.
Congratulations
on purchasing your new AT&T product. Before using this AT&T product, please
read Important safety information on pages 51-52 of this user’s manual.
Please thoroughly read the user’s manual for all the feature operations and
troubleshooting information you need 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].
The ENERGY STAR® 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 STAR® label indicating it meets the
latest energy efficiency guidelines.
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.
Model number: EL51100/EL51110
Type: DECT 6.0 cordless telephone
Serial number:
Purchase date:
Place of purchase:
Both the model and serial number of your AT&T product can be found on the
bottom of the telephone base.

Parts checklist
Your telephone package contains the following items. Save your sales receipt
and original packaging in the event warranty service is necessary.
Cordless handset Wall mount bracket
Power adapter for
telephone base
Telephone base
Telephone line cord
Battery compartment coverBattery for cordless handset
Quick start guide
Quick start guide
EL51100/EL51110
DECT 6.0 cordless telephone
with caller ID/call waiting

i
User’s manual
EL51100/EL51110
DECT 6.0 cordless telephone
with caller ID/call waiting
Table of contents
Getting started
Quick reference guide ..................................................2
Telephone base installation.......................................4
Battery installation and charging............................5
Battery installation..................................................5
Battery charging.......................................................6
Wall mount installation................................................7
Tabletop to wall mount installation................7
Wall mount to tabletop installation ...............9
Telephone settings
Menu overview...............................................................10
Handset settings...........................................................11
Ringer volume.........................................................11
Ringer tone...............................................................11
LCD language..........................................................12
Voicemail waiting (visual message
waiting) indicator ..................................................12
Clear voicemail indication ................................12
Key tone.....................................................................13
Set date/time..........................................................13
Home area code ....................................................14
Dial mode..................................................................14
Telephone operation
Making, answering and ending a call.................15
Making a call ...........................................................15
Temporary ringer silencing...............................15
Answering a call....................................................15
Speakerphone.........................................................16
Ending a call............................................................16
Redial..................................................................................17
To review numbers in the redial list............17
To call a number from the redial list ..........17
To copy a number from the redial list
to the directory......................................................18
To delete a number from the redial list ....18
Options while on calls...............................................19
Volume control.......................................................19
Mute.............................................................................19
Flash/call waiting .................................................19
Temporary tone dialing......................................20
Chain dialing............................................................20
Handset locator.............................................................22
Directory
Directory overview.......................................................23
Directory memory capacity..............................23
Exiting the directory ............................................23
Speed dial overview.............................................23
Create directory entries............................................24
To create a new directory entry....................24
To add a predialed telephone number
to the directory......................................................25
Reviewing the directory............................................26
To review directory entries...............................26
To search by name...............................................26

ii
Dialing, deleting and editing
a directory entry...........................................................28
To dial a directory number...............................28
To delete a directory entry ..............................28
To edit a directory entry....................................28
Speed dial locations ...................................................29
To assign or reassign a directory entry
to a speed dial location.....................................29
To clear a speed dial location........................30
To dial a speed dial number............................30
Caller ID
About caller ID ..............................................................31
Information about caller ID with
call waiting...............................................................31
About home area code ......................................31
Caller ID history............................................................32
How caller ID history (call log) works ........32
Memory match........................................................32
Caller ID operation......................................................33
Missed (new) calls indicator ............................33
Reasons for missing caller ID
information...............................................................33
To review the caller ID history .......................34
To view the dialing options..............................34
To dial a number from the caller ID
history.........................................................................35
To delete caller ID history entries ................35
Saving a caller ID history entry in the
directory.....................................................................36
Appendix
Screen icons, indicator lights and
alert tones .......................................................................38
Screen icons ............................................................38
Handset indicator lights.....................................38
Telephone base indicator lights.....................39
Handset alert tones .............................................39
Handset display screen messages.......................40
Troubleshooting ............................................................42
Maintenance....................................................................50
Important safety information .................................51
Safety information ................................................51
Especially about cordless telephones ........51
Precautions for users of implanted
cardiac pacemakers .............................................52
Pacemaker patients .............................................52
Especially about telephone answering
systems ......................................................................52
FCC Part 68 and ACTA...............................................53
FCC Part 15.....................................................................55
Limited warranty...........................................................56
Technical specifications ............................................59
DECT 6.0 digital technology ............................59
Telephone operating range..............................59
Index...................................................................................60

1
Install the telephone base close to a telephone wall jack and an electrical
outlet not controlled by a wall switch. The telephone base can be placed on a
flat surface or vertically mounted on the wall (page 7). For optimum range and
better reception, place the telephone base in a central and open location.
If you subscribe to high-speed Internet service (DSL - digital subscriber line)
through your telephone line, you must install a DSL filter between the telephone
line cord and the telephone wall jack (page 4). The filter prevents noise and
caller ID problems caused by DSL interference. Please contact your DSL service
provider for more information about DSL filters.
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
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
work bench.
•
•
•
•
•
•
•
You must install and charge
the battery before using the
cordless handset.
See pages 5 and 6 for easy
instructions.

2
Getting started
Quick reference guide
REDIAL/PAUSE
Press repeatedly to view the last
20 numbers dialed (page 17).
While entering numbers,
press and hold to insert a dialing
pause (pages 15 and 24).
PHONE/FLASH
Press to make or answer a call
(page 15).
During a call, press to answer an
incoming call when you receive
a call waiting alert (page 19).
1
While reviewing a caller ID
history entry, press repeatedly to
add or remove 1 in front of the
telephone number before dialing
or saving it in the directory
(page 34).
0
While entering names in the
directory, press to add a space
(page 24).
TONE
During a call, press to send
touch-tone signals (page 20).
MUTE
During a call, press to mute the
microphone (page 19).
SPEAKER
Press to turn on the handset
speakerphone. Press again to
resume normal handset use
(page 20).
#
While reviewing a caller ID
history entry, press repeatedly
to display other dialing options
(page 34).
DIR/VOLUME
Press to scroll up while in
menus (page 10).
Press to increase the listening
volume (page 19).
Press to show directory entries
when the handset is not in use
(page 26).
While entering names or
numbers in the directory, press
to move the cursor to the right
(page 24).
MENU/SELECT
Press to display the menu
(page 10).
Once in the menu, press to
select an item or save an entry
or setting (page 10).
OFF/CLEAR
During a call, press to hang up
(page 16).
While using menus, press to
cancel an operation, back up to
the previous menu, or exit the
menu display (page 10).
Press and hold while the
handset is not in use to erase
the missed calls indicator
(page 33).
CID/VOLUME
Press to scroll down while in
menus (page 10).
Press to decrease the listening
volume (page 19).
Press to show the caller ID
history when the handset is not
in use (page 34).
While entering names or
numbers in the directory, press
to move the cursor to the left
(page 24).
DELETE
While predialing, press to
delete digits (page 15).
While reviewing the redial list,
directory, speed dial list or
caller ID history, press to delete
an individual entry (pages 18,
28, 29 and 35).

3
Getting started
Using menus
Press MENU/SELECT to enter the
main menu.
Press DIR or CID to scroll through
menu items.
Press MENU/SELECT to select or
modify a highlighted item.
Press OFF/CLEAR to cancel an
operation, back up to the previous
menu, or exit the menu display.
Quick reference guide
HANDSET LOCATOR
Press to make the handset beep so you can locate it
(page 22).
Main menu
DIRECTORY (page 24)
CALL LOG (page 34)
RINGERS (page 11)
SETTINGS (pages 12-14)
>DIRECTORY
CALL LOG
The > symbol indicates
the feature to select.

4
Getting started
If you subscribe to high-speed Internet service (DSL - digital subscriber line)
through your telephone line, 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.
The telephone base comes ready for tabletop use. If you want to mount your
telephone on a wall, refer to Wall mount installation on page 7 for details.
Telephone base installation
Plug the small end of the
base power adapter into
the power jack on the
bottom of the telephone
base.
Telephone line cord
A DSL filter (not included) is required if you
have DSL high-speed Internet service.
Telephone wall jackElectrical outlet not
controlled by a wall switch
Plug one end of the
telephone line cord into
the TEL. LINE jack on the
bottom of the telephone
base.
Plug the other end of the
telephone line cord into a
telephone
wall jack.
Plug the large end of
the base power adapter
into an electrical outlet
not controlled by a wall
switch.
Route the cords through
the slots.
IMPORTANT INFORMATION:
Use only the power adapter provided with this product. To obtain a replacement, visit our website
at www.telephones.att.com or call 1 [phone]. In Canada, dial
1 [phone].

5
Getting started
Battery installation and charging
Battery installation
Install the battery as shown below.
IMPORTANT INFORMATION:
Use only the supplied rechargeable battery or replacement battery (model BT166342). To order,
visit our website at www.telephones.att.com, or call 1 [phone].
In Canada, dial 1 [phone].
To replace the battery, press the tab and
slide the battery compartment cover
downwards. Lift out the old battery and
disconnect it from the handset. Follow the
instructions above to install and charge the
new battery.
Charge the handset by placing it face up in
the telephone base. The CHARGE light is on
when charging.
4.
Align the cover flat against
the battery compartment,
then slide it upwards until
it clicks into place.
3.Plug the battery
connector securely
into the socket inside
the handset battery
compartment, matching
the color-coded label.
1. Insert the supplied battery
with the label THIS SIDE
UP facing up as indicated.
2.
CHARGE light