This quick start guide provides you 
with basic instructions only. For 
more complete instructions, refer 
to your Abridged user’s manual 
provided in the package, or see the 
online Complete user’s manual at 
www.telephones.att.com/manuals.
Caution: Use only the supplied rechargeable battery or replacement 
battery (model BT183342/BT283342).
Caution: Use only the power adapter(s) 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.
Notes:
 Ì Plug one end of the telephone line cord into a telephone jack or a DSL 
lter.
 Ì If you have DSL high-speed Internet service, a DSL lter (not included) 
is required.
Telephone base
Install Overview
Charger
Battery
Install the battery, as shown below. Charge your handset(s) 
before initial use. The battery is fully charged aer ten hours 
of continuous charging.
Handset
CHARGE light  Ì On when the handset is charging in 
the charger.
PUSH TO TALK
 Ì Press to initiate a one-to-one or 
one-to-group broadcast.
 Ì Press and hold to broadcast to a 
group of system devices.
 Ì Press repeatedly to view the last 10 
numbers dialed.
 Ì While entering numbers, press and 
hold to insert a dialing pause.
 Ì When the handset is not in use, 
press to show the menu.
 Ì While in the menu, press to select 
an item or save an entry or setting.
DIR
 Ì Press DIR to show directory entries 
when the handset is not in use.
 Ì Press to scroll up or down while in 
menus.
 Ì Press to increase or decrease the 
listening volume when on a call.
CID
 Ì Press CID to show caller ID log 
when the handset is not in use.
 Ì Press to make or answer a call.
 Ì During a call, press to answer an 
incoming call when you receive a 
call waiting alert.
 Ì During a call, press to hang up.
 Ì While in a menu, press to cancel an 
operation, back up to the previous 
menu, or exit the menu display; or 
press and hold this button to exit 
to idle mode.
 Ì Press and hold to set or dial your 
voicemail number.
 Ì Press to switch to tone dialing 
temporarily during a call if you 
have pulse service.
 Ì While entering names, press to 
change the next letter to upper or 
lower case.
 Ì Press and hold to enter the 
QUIET mode setting screen, or to 
deactivate QUIET mode.
 Ì Press to make or answer a call 
using the speakerphone.
Telephone base
/ FIND HS
VOL /  VOL
 Ì While the phone is idle, press to 
page all handsets.
 Ì While in idle mode, press to 
adjust the base ringer volume.
 Ì During message playback, press 
to adjust the listening volume.
IN USE indicator  Ì On when the telephone is in use, 
or when the answering system is 
answering an incoming call.
 Ì On when a handset is being 
registered.
 Ì Flashes when there is an 
incoming call or when all 
handsets are being deregistered.
 Ì Flashes when another telephone 
is in use on the same line.
FLASH/PTT
CID
MENU/SELECT
DIR
 Ì Press to initiate a one-to-one or 
one-to-group broadcast.
 Ì Press and hold to broadcast to a 
group of system devices.
 Ì During a call, press to answer an 
incoming call when you receive 
a call waiting alert.
 Ì Press qCID to show caller ID 
log when the telephone is not 
in use.
 Ì Press to scroll down while in 
menus and lists.
 Ì While entering names or 
numbers, press to move the 
cursor to the le.
 Ì When the telephone is not in 
use, press to show the menu.
 Ì While in the menu, press to 
select an item or save an entry 
or setting.
 Ì Press pDIR to show directory 
entries when the telephone is 
not in use.
 Ì Press to scroll up while in menus 
and lists.
 Ì While entering names or 
numbers, press to move the 
cursor to the right.
Part lists
 Ì 1 for CL84107
 Ì 2 for CL84207/
CL84257
 Ì 3 for CL84307/
CL84327/
CL84347/
CL84357
Quick start guide
CL84107/CL84207/CL84257/
CL84307/CL84327/CL84347/
CL84357
Abridged user’s manual
CL84107/CL84207/CL84257/
CL84307/CL84327/CL84347/
CL84357
DECT 6.0 corded/cordless  
telephone/answering system 
with caller ID/call waiting
 Ì 1 for CL84107
 Ì 2 for CL84207/
CL84257
 Ì 3 for CL84307/
CL84327/
CL84347/
CL84357
THIS SIDE UP / 
CE CÔTÉ VERS LE HAUT
CALL BLOCK
 Ì During a call, press to mute the 
microphone.
 Ì Press to delete digit or character.
 Ì Press to block the incoming call 
when the telephone is ringing.
 Ì When on a call, press to block the 
call.
 Ì When the handset is not in use, 
press to show the Smart call 
blocker menu.
Telephone base
CANCEL
 Ì While in a menu, press to cancel 
an operation, back up to the 
previous menu, or exit the menu 
display; or press and hold this 
button to exit to idle mode.
 Ì When the telephone base is 
ringing, press to mute the ringer 
temporarily.
 Ì Press and hold while the 
telephone is not in use to erase 
the missed call indicator.
 / CALL BLOCK
REDIAL/PAUSE
 / ANS ON/OFF
/ REPEAT
/ SKIP
 / PLAY/STOP
MUTE/DELETE
/SPEAKER
 Ì Press to block the incoming call 
when the telephone is ringing or 
during the call.
 Ì When the telephone base is not 
in use, press to show the Smart 
call blocker menu.
 Ì Press repeatedly to view the last 
10 numbers dialed.
 Ì While entering numbers, press 
and hold to insert a dialing 
pause.
 Ì Press to turn the built-in 
answering system on or o.
 Ì During playback, press to repeat 
the playing message.
 Ì During playback, press twice to 
play the previous message.
 Ì Press to skip a message.
 Ì Press to start or stop message 
playback.
 Ì During a call, press to mute the 
microphone.
 Ì When the telephone is ringing, 
press to mute the ringer 
temporarily.
 Ì While reviewing the caller ID log, 
directory, redial memory, allow 
list, star name list, or block list, 
press to delete an individual 
entry.
 Ì While predialing, press to delete 
digits.
 Ì During message or 
announcement playback, press 
to delete the playing message 
or announcement.
 Ì Press twice to delete all old 
messages when the telephone 
is not in use.
 Ì Press to make or answer a call 
using the speakerphone.
MIC
 Ì Microphone.
TONE  /a>A
QUIET #
 Ì Press and hold to set or to dial 
your voicemail number.
 Ì Press to switch to tone dialing 
temporarily during a call if you 
have pulse service.
 Ì While entering names, press to 
change the next letter to upper 
or lower case.
 Ì Press repeatedly to display 
other dialing options when 
reviewing a caller ID log entry.
 Ì Press and hold to enter the 
QUIET mode setting screen, or 
to deactivate QUIET mode.
Basic initial settings
We recommend you program your telephone system 
before use. The following are a few examples of common 
features to set before using the telephone. Refer to the 
Handset and telephone base settings and Answering 
system settings in the Abridged user’s manual or the 
online Complete user’s manual for detailed instructions on 
setting all telephone features.
Date and time
Note: Set the date/time before using the answering system. 
Using a cordless handset or the telephone base:
1.   ->  or  -> Set date/time -> SELECT.
2.  Enter the month, day and year using the dialing keys -> 
SELECT.
3.  Enter the hour and minute using the dialing keys.
4.  or  to choose AM or PM -> SELECT.
Basic answering system setup via 
voice guide
You can follow the voice guide to record your own 
announcement, set the number of rings and set the 
message alert tone.
Using the telephone base:
1.   -> or -> Answering sys -> SELECT.
2.  or  -> Voice guide -> SELECT.
3.  Set up the answering system by inputting the 
designated numbers, as instructed.
Record your own announcement
Your outgoing announcement plays when calls are 
answered by the answering system. You can use the preset 
announcement to answer calls, or replace it with your own 
recorded announcement.
Using a cordless handset or the telephone base:
1.   -> or  -> Answering sys -> SELECT.
2.   to select Announcement.
3.   to select Record annc.
4.  Aer the tone, speak towards the handset or telephone 
base to record your announcement. Press 5 to end 
recording.
Number of rings
You can set the answering system to answer an incoming 
call aer 2, 3, 4, 5, or 6 rings. You can also select toll saver. 
If you choose toll saver, the answering system answers 
a call aer two rings when you have new messages, and 
aer four rings when there are no new messages. This 
enables you to check for new messages and avoid paying 
unnecessary long distance charges if you are calling from 
out of your local area.
If you want the built-in answering system instead of the 
voicemail to answer a call, you should set the answering 
system to answer a call at least two rings before the 
voicemail is set to answer. Contact your telephone service 
provider for information on your voicemail settings.
Using a cordless handset or the telephone base:
1.   -> or -> Answering sys -> SELECT.
2.  or  -> Ans sys setup -> SELECT.
3.  or  -> # of rings -> SELECT.
4.  or  to choose among 2, 3, 4, 5, 6, or Toll saver -> 
SELECT.
Ringer volume
You can set the ringer volume level to one of the six levels, 
or turn the ringer o.
Using a cordless handset or the telephone base:
1.   -> or -> Ringers -> SELECT.
2.   to select Ringer volume.
3.  or  to choose the desire level -> SELECT.
Quick start guide
CL84107/CL84207/CL84257/
CL84307/CL84327/CL84347/
CL84357
© 2017-2018 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. Issue 4.0 AT&T 11/18
Part lists
Install
Overview
Basic initial settings
Operate