AT&T EL51110 User manual

User’s manual
(Canada version)
EL51110/EL51200/EL51210/
EL51250/EL51300/EL51310/
EL51400/EL51410
DECT 6.0 cordless telephone with
caller ID/call waiting

© 2009-2013 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 page 53 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].
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.
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.
Model #: EL51110 (one-handset system)
EL51200/EL51210/EL51250 (two-handset system)
EL51300/EL51310 (three-handset system)
EL51400/EL51410 (four-handset system)
Type: DECT 6.0 cordless telephone
Serial #:
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.
Power adapter for
telephone base
Wall mount bracketCharger for cordless handset with
power adapter installed
(1 for EL51200/EL51210/EL51250)
(2 for EL51300/EL51310)
(3 for EL51400/EL51410)
Battery for cordless handset
(1 for EL51110)
(2 for EL51200/EL51210/EL51250)
(3 for EL51300/EL51310)
(4 for EL51400/EL51410)
Battery compartment cover
(1 for EL51110)
(2 for EL51200/EL51210/EL51250)
(3 for EL51300/EL51310)
(4 for EL51300/EL51410)
Telephone line cord
Cordless handset
(1 for EL51110)
(2 for EL51200/EL51210/EL51250)
(3 for EL51300/EL51310)
(4 for EL51400/EL51410)
Telephone base
Quick start guide
EL51110/EL51200/
EL51210/EL51250
EL51300/EL51310/
EL51400/EL51410

i
User’s manual
EL51110/EL51200/EL51210/
EL51250/EL51300/EL51310/
EL51400/EL51410
DECT 6.0 cordless telephone
with caller ID/call waiting
Table of contents
Getting started
Quick reference guide ..................................................2
Telephone base and charger 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....................................................16
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 in 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
Join a call in process ..........................................21
Handset locator.............................................................22
Intercom............................................................................23
To make and answer an intercom call.......23
To answer an incoming call during an
intercom call............................................................23
Call transfer using intercom...................................24
Directory
Directory overview.......................................................25
Shared directory ....................................................25
Directory memory capacity..............................25
Exiting the directory ............................................25
Speed dial overview.............................................25

ii
Create directory entries............................................26
To create a new directory entry....................26
To add a predialed telephone number
to the directory......................................................27
Reviewing the directory............................................28
To review directory entries...............................28
To search by name...............................................28
Dialing, deleting and editing
a directory entry...........................................................30
To dial a directory number...............................30
To delete a directory entry ..............................30
To edit a directory entry....................................30
Speed dial locations ...................................................31
To assign or reassign a directory entry
to a speed dial location.....................................31
To clear a speed dial location........................32
To dial a speed dial number............................32
Caller ID
About caller ID ..............................................................33
Information about caller ID with
call waiting...............................................................33
About home area code ......................................33
Caller ID history............................................................34
How caller ID history (call log) works ........34
Memory match........................................................34
Caller ID operation......................................................35
Missed (new) calls indicator ............................35
Reasons for missing caller ID
information...............................................................35
To review the caller ID history .......................36
To view the dialing options..............................37
To dial a number from the caller ID
history.........................................................................37
To delete caller ID history entries................38
Saving a caller ID history entry in the
directory.....................................................................38
Appendix
Screen icons, indicator lights and
alert tones .......................................................................40
Screen icons ............................................................40
Handset indicator lights.....................................40
Telephone base indicator lights.....................41
Handset alert tones .............................................41
Handset display screen messages.......................42
Troubleshooting ............................................................44
Maintenance....................................................................52
Important safety information .................................53
Safety information ................................................53
Especially about cordless telephones ........53
Precautions for users of implanted
cardiac pacemakers .............................................54
Pacemaker patients .............................................54
Especially about telephone answering
systems ......................................................................54
FCC Part 68 and ACTA...............................................55
FCC Part 15.....................................................................57
Limited warranty...........................................................58
Technical specifications ............................................61
DECT 6.0 digital technology ............................61
Telephone operating range..............................61
Index...................................................................................62

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].
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
INT
Press to initiate an
intercom conversation or
transfer a call
(pages 23 and 24).
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 26).
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 37).
0
While entering names in the
directory, press to add a space
(page 26).
TONE
During a call, press to send touch-
tone signals (page 20).
SPEAKER
Press to turn on the handset
speakerphone. Press again to
resume normal handset use
(page 16).
MUTE/DELETE
During a call, press to mute the
microphone (page 19).
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, 30, 31 and 38).
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 28).
While entering names or numbers
in the directory, press to move the
cursor to the right (page 26).
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 35).
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 36).
While entering names or numbers
in the directory, press to move the
cursor to the left (page 26).
#
When reviewing a caller ID history
entry, press repeatedly to view the
dialing options (page 37).

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 handsets beep so you can
locate them (page 22).
Main menu
DIRECTORY (page 26)
CALL LOG (page 36)
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 and charger installation
Telephone line cord
DSL filter (not included) is
required if you have DSL
high-speed Internet service.
Telephone wall jack
Plug the other end of
the telephone line cord
into a telephone wall
jack.
Plug one end of the
telephone line cord
into the TEL. LINE
jack on the bottom
of the telephone
base.
Plug the small end
of the telephone
base power adapter
into the power jack
on the bottom of the
telephone base.
Electrical outlet not
controlled by a wall
switch
Plug the large end of
the telephone base
power adapter into
an electrical outlet
not controlled by a
wall switch.
Route the cords
through the slots.
Plug the large end
of the charger power
adapter into an
electrical outlet not
controlled by a
wall switch.
Ensure the small end
of the charger power
adapter is plugged
into the power jack
on the bottom of the
charger.
IMPORTANT INFORMATION:
Use only the power adapters provided with this
product. To obtain a replacement, visit our website at
www.telephones.att.com or call
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 BT162342). To order,
visit our website at www.telephones.att.com, or call 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 or charger. 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

6
Getting started
Battery installation and charging
Battery charging
Once you have installed the battery, the screen indicates
the battery status (see the table below). If necessary, place
the handset in the telephone base or charger to charge
the battery. For best performance, keep the handset in the
telephone base or charger when not in use. The battery is
fully charged after 16 hours of continuous charging. See
Technical specifications on page 61 for battery
operating times.
If the screen is blank, you need to charge the handset without interruption for
at least 30 minutes to give the handset enough charge to use the telephone
for a short time. The screen shows LOW BATTERY until you have charged
the battery without interruption for at least 30 minutes. The following table
summarizes the battery charge indicators and actions to take.
Battery indicators Battery status Action
The screen is blank or shows
PLACE IN CHARGER.
Battery has no or very little
charge. The handset cannot
be used.
Charge without interruption
until the screen shows
LOW BATTERY or HANDSET X
(at least 30 minutes).
The screen shows
LOW BATTERY and flashes.
Battery has enough charge to
be used for a short time.
Charge without interruption
until the screen shows
HANDSET X (at least
30 minutes).
The screen shows HANDSET X
and the battery icon shows
, or .
Battery is charged. To keep the battery charged,
place it in the telephone base
or charger when not in use.
NOTES:
If you are on a call in low battery mode, you hear four short beeps every 50 seconds.
When you place the handset in the telephone base or charger, if no battery is installed in that
handset, the CHARGE light is off and the screen shows NO BATTERY. Follow the instructions
in Battery installation on page 5 to install the battery.
•
•
Battery status icon
11/20
HANDSET 1
16 MISSED CALLS
10:30PM

7
Getting started
Wall mount installation
The telephone base comes ready for tabletop use. If you want to mount your
telephone on a wall, use the provided wall mount bracket to connect with
a standard dual-stud telephone wall mounting plate. If you do not have this
mounting plate, you can purchase one from many hardware or consumer
electronics retailers. Professional assistance may be required to install the
mounting plate.
Tabletop to wall mount installation
To change the telephone base from the tabletop installation to wall mount
installation, make sure you first unplug the power adapter from the electrical
outlet and unplug the telephone line cord from the telephone wall jack.
Plug one end of the telephone line cord into the TEL. LINE jack on the
bottom of the telephone base. Plug the small end of the base power adapter
into the power jack on the bottom of the telephone base.
Position the telephone base as shown below. Insert the extended tabs of the
wall mount bracket into the slots on the back of the telephone base. Push
the telephone base down until it clicks securely in place.
Route the telephone line cord through the wall mount bracket hole. Route
the power cord out of the bottom of the telephone.
1.
2.
3.
DSL filter (not included) is
required if you have DSL high-
speed Internet service.
Slots for wall mount
bracket installation

8
Getting started
Wall mount installation
Plug the other end of the telephone line cord into the telephone wall jack.
Plug the large end of the base power adapter into an electrical outlet not
controlled by a wall switch.
4.
Align the holes on the wall mount bracket with the mounting studs of the
wall mounting plate and slide the bracket down until it locks securely. Bundle
the telephone line cord and power adapter cord neatly with twist ties.
5.
DSL filter (not included) is
required if you have DSL high-
speed Internet service.
DSL filter
DSL filter

9
Getting started
Wall mount installation
Wall mount to tabletop installation
To change the telephone base from the wall mount installation to tabletop
installation, follow the steps below.
Unplug the large end of the base power adapter from the electrical outlet.
If the telephone line cord and power adapter cord are bundled, untie them
first. Slide the wall mount bracket up and remove it from the wall mounting
plate. Unplug the end of the telephone line cord from the telephone wall jack.
1.
2.
Lift the telephone base up to detach it from the wall mount bracket.3.
Refer to Telephone base and charger installation on page 4 to install the
telephone base.
4.

10
Menu overview
Use the menu to change the telephone settings.
Press MENU/SELECT in idle mode (when the handset is not
in use) to enter the main menu.
Press DIR or CID to scroll until the >symbol is next to the
feature you want to select.
Press MENU/SELECT to select or save the indicated item.
-OR-
Press OFF/CLEAR to cancel an operation, back up to the
previous menu or exit the menu display.
-OR-
Press and hold OFF/CLEAR to cancel an operation and
return to idle mode.
-OR-
If no key is pressed within 30 seconds, the handset
automatically cancels an operation and returns to idle mode.
NOTE: The menu items DIRECTORY, CALL LOG, CLR VOICEMAIL, SET DATE/TIME,
HOME AREA CODE and DIAL MODE are shared by all handsets. Any changes made to these
menu items on any one handset apply to all.
1.
2.
3.
Menu structure
DIRECTORY
CALL LOG
RINGERS
SETTINGS RINGER VOLUME
RINGER TONE
LCD LANGUAGE
CLR VOICEMAIL
KEY TONE
SET DATE/TIME
HOME AREA CODE
DIAL MODE
The handset is in
idle mode.
11/20
HANDSET 1
16 MISSED CALLS
10:30PM
The > symbol indicates
the feature to select.
>DIRECTORY
CALL LOG
Telephone settings

11
Telephone settings
Handset settings
Ringer volume
You can set the handset ringer volume level (1-6), or turn the ringer off. When
the ringer is off, appears on the handset screen.
Press MENU/SELECT in idle mode to enter the main menu.
Press DIR or CID to scroll to >RINGERS. Press MENU/SELECT.
Press MENU/SELECT to select >RINGER VOLUME.
Press DIR or CID to sample each volume level.
Press MENU/SELECT to save your preference.
NOTES:
The handset ringer volume also determines the ringer volume of intercom calls (see
Intercom on page 23).
If the handset ringer volume is set to off, that handset ringer is silenced for all incoming calls;
however, that handset still plays the paging tone when initiating the handset locator feature
(see Handset locator on page 22).
While the telephone is ringing, pressing OFF/CLEAR or MUTE/DELETE silences the ringer
temporarily (see Temporary ringer silencing on page 15).
Ringer tone
You can choose one of 10 ringer tones for the handset.
Follow steps 1 and 2 in Ringer volume on this page.
Press DIR or CID to scroll to >RINGER TONE, then press
MENU/SELECT.
Press DIR or CID to sample each ringer tone.
Press MENU/SELECT to save your preference.
NOTE: If you turn off the ringer volume, you will not hear ringer tone samples.
1.
2.
3.
4.
5.
•
•
•
1.
2.
3.
4.
RINGER VOLUME
RINGER TONE
>1

12
Telephone settings
Handset settings
LCD language
You can use this feature to select the language used for all screen displays.
Press MENU/SELECT in idle mode to enter the main menu.
Press DIR or CID to scroll to >SETTINGS.
Press MENU/SELECT twice to select >LCD LANGUAGE.
Press DIR or CID to select ENGLISH, FRANÇAIS or
ESPAÑOL.
Press MENU/SELECT to save your preference.
Voicemail waiting (visual message waiting) indicator
If you subscribe to a voicemail service offered by your telephone
service provider, this feature provides a visual indication when
you have new voicemail messages. NEW VOICEMAIL and
appear on the handset screen.
NOTE: Your telephone service provider might alert you to new voicemail
messages with a stutter (broken) dial tone. Contact your telephone service provider for more details.
Clear voicemail indication
Use this feature when the telephone indicates there is new voicemail but there is
none. This may occur, for example, when you have accessed your voicemail while
away from home. This feature only turns off the displayed NEW VOICEMAIL
message and icon; it does not delete your voicemail messages. As long as you
have new voicemail messages, your telephone service provider continues to send
the signal to turn on the indicator.
To manually turn off the new voicemail indicator:
Follow steps 1 and 2 in LCD language on this page.
Press DIR or CID to scroll to >CLR VOICEMAIL, then press
MENU/SELECT. The screen shows TURN OFF INDICATOR?
Press MENU/SELECT to turn the voicemail indication off. A
confirmation tone sounds.
-OR-
Press OFF/CLEAR to cancel the procedure.
NOTE: For information about using your voicemail service, contact your telephone
service provider.
1.
2.
3.
4.
5.
1.
2.
3.
11/20
HANDSET 1
NEW VOICEMAIL
10:30PM
LCD LANGUAGE
>ENGLISH
TURN OFF
INDICATOR?

13
Telephone settings
Handset settings
Key tone
The handset is programmed to beep with each key press. You can turn
KEY TONE off, so there are no beeps when you press keys.
Press MENU/SELECT in idle mode to enter the main menu.
Press DIR or CID to scroll to >SETTINGS, then press
MENU/SELECT.
Press DIR or CID to scroll to >KEY TONE, then press
MENU/SELECT.
Press DIR or CID to select ON or OFF.
Press MENU/SELECT to save your preference.
Set date/time
If you subscribe to caller ID service, the day, month and time are set
automatically with each incoming call (see About caller ID on page 33).
To set the date and time manually:
Follow steps 1 and 2 in Key tone on this page.
Press DIR or CID to scroll to >SET DATE/TIME, then press MENU/SELECT.
Use the dial pad keys (0-9) to enter the two-digit number
(01-12) for the month.
Use the dial pad keys (0-9) to enter the two-digit number
(01-31) for the day.
Use the dial pad keys (0-9) to enter the two-digit number
(00-99) for the year. Press MENU/SELECT.
Use the dial pad keys (0-9) to enter the two-digit number
(01-12) for the hour.
Use the dial pad keys (0-9) to enter the two-digit number
(00-59) for the minute.
Press DIR or CID to choose AM or PM. Press MENU/SELECT to confirm. A
confirmation tone sounds.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
6.
7.
8.
KEY TONE
>ON
SET DATE
11/20/09
SET TIME
10:30 PM

14
Telephone settings
Home area code
If you dial seven digits to make a local call (no area code required), enter your
area code into the telephone as the home area code. When you receive a call
from within your home area code, the caller ID history only displays the seven
digits of the telephone number.
This feature makes it easy for you to place a call from the caller ID history. If
you dial 10 digits to make a local telephone call, do not use this home area
code feature. If you do, you will not be able to place calls from your caller ID
history as they have only seven digits.
Press MENU/SELECT in idle mode to enter the main menu.
Press DIR or CID to scroll to >SETTINGS, then press MENU/SELECT.
Press DIR or CID to scroll to >HOME AREA CODE, then
press MENU/SELECT.
Press the dial pad keys to enter your three-digit area code.
Press MUTE/DELETE to delete digits while entering.
Press MENU/SELECT to save the setting.
NOTE: If, in the future, your telephone service provider requires you to dial 10 digits to make
a local call (area code + telephone number), you will need to delete your home area code. While
the home area code displaying in step 4 above, press and hold MUTE/DELETE. The home area
code is now restored to its default setting of _ _ _ (empty).
Dial mode
The dial mode is preset to tone dialing. If you have pulse (rotary) service, you
must change the dial mode to pulse dialing before using the telephone.
Follow steps 1 and 2 in Home area code on this page.
Press DIR or CID to scroll to >DIAL MODE, then press
MENU/SELECT.
Press DIR or CID to select TONE or PULSE.
Press MENU/SELECT to save the setting.
NOTE: If you have pulse (rotary) dialing service only, refer to Temporary tone dialing on
page 20 to temporarily switch from pulse to touch-tone dialing during a call.
1.
2.
3.
4.
5.
1.
2.
3.
4.
Handset settings
HOME AREA CODE
___
DIAL MODE
>TONE

15
Making, answering and ending a call
Making a call
To make a call:
Press PHONE/FLASH, then wait for the dial tone.
-OR-
Press SPEAKER to use the speakerphone, then wait
for the dial tone.
Use the dial pad keys to enter the telephone number.
On-hook dialing (predialing):
Use the dial pad keys to enter the telephone number (up
to 30 digits).
Press and hold REDIAL/PAUSE to insert a three-second
dialing pause (a Pappears).
Press MUTE/DELETE or OFF/CLEAR to make corrections.
Press PHONE/FLASH to call.
-OR-
Press SPEAKER to call using the speakerphone.
-OR-
Press and hold OFF/CLEAR to return to idle mode.
NOTES:
Pressing PHONE/FLASH to access services from your telephone service provider does not
affect the elapsed time.
When a handset is on a call, if another handset attempts to access the directory, speed dial list
or caller ID history, the screen shows NOT AVAILABLE AT THIS TIME.
Temporary ringer silencing
While the telephone is ringing, press OFF/CLEAR or
MUTE/DELETE to silence the ringer temporarily on that
handset only.
This turns off the ringer without disconnecting the call. The
next incoming call rings normally at the preset volume.
NOTE: Unless the ringer volume is turned off on that handset, each handset rings when
there is an incoming call.
1.
2.
1.
•
•
2.
•
•
RINGER MUTED
Telephone operation
888-722-7702
11/20
PHONE 0:01:30
888-722-7702
10:30PM
The screen displays the
elapsed time as you
talk (in hours, minutes
and seconds).