If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
If you experience any problems, please visit  
www.bt.com/producthelp
Welcome ….
to your BT Duet 210 
Corded Telephone
•  10 number quickdial memory 
- for ease of dialling your most 
important telephone numbers
•  Mute – mutes your voice so  
you can talk to someone else in  
the room without your caller 
hearing you
•  Last number redial – easy,  
one-touch dialling of the last 
number called
•  Desk or wall mountable for  
your convenience
Getting started
Setting up
1  Plug the telephone line cord into 
the telephone wall socket.
2  You can use your telephone on a 
desk or similar surface or it can be 
wall mounted:
To use on a desk
i
)  Press the telephone line cord into 
the groove on the underside of the 
base to ensure the phone sits flat.
To wall mount your phone
Important
Before you wall mount, please 
check that:
-  the wall can support the  
weight of the phone
-  you are not drilling into any 
hidden wiring or plumbing
-  the telephone line cord will 
reach the telephone socket
BT are not responsible for any 
damage/injury caused while 
attempting to wall mount  
your telephone.
i)  Drill two 4mm diameter holes in 
the wall either 100mm or 72mm 
apart according to your preference. 
 
Wall
Wall plug Screw
100mm or 72mm
ii)  Insert wall plugs into the holes,  
and then insert a screw into each 
hole. Leave approximately 5mm  
of the screw head protruding  
from the wall to hold the base 
securely in place.
iii)  Position the telephone onto the 
screws. Drop down and secure  
into place.
Getting to know your phone Using the phone
Make a call
1
  Lift the handset and wait for the 
dial tone.
2  Enter the telephone number.
End a call
1
  Replace the handset or press the 
hook switch if you want to make a 
follow-on call.
Receive a call
1
  When you receive a call, the 
telephone rings and the red 
incoming call LED indicator will 
flash. Simply pick up the handset 
to answer the call.
Last number redial
1
  Lift the handset and press the 
 button. The last number 
called will be redialled.
A redial number can only be 32 
digits long. If the last number 
redialled was longer than 32 
digits only the first 32 digits will 
be dialled out.
Mute
1
  During a call, press and release the 
 button to mute the handset 
microphone. The red LED on the 
mute button will illuminate to 
indicate that the mute feature is on. 
Your caller now cannot hear you speak.
2  To switch mute off, press and release 
the   button again. The red LED 
will turn off and your caller will now 
be able to hear you.
The mute feature will automatically 
switch off if you replace the handset 
on the base.
Adjust the ringer volume
1
  Adjust the switch on the front of the 
handset to the volume you want.  
There are 3 volume levels: high, 
low or off. The default is high.
Quickdial memory
You can store 10 of your most 
frequently dialled telephone numbers 
under the quickdial memory buttons 
 to  . There is a quickdial memory 
card located on the base of the 
telephone so you can make a note of 
the number or the contact associated 
with the number you have stored. 
You’ll need to lift the plastic plate up 
so you can write on the card.
Quickdial memory telephone 
numbers can be a maximum of 32 
digits. If you enter more than 32 
digits you will hear an error tone.
Store a number in the  
quickdial memory
1
  Lift the handset.
2  Press and hold the   button 
for 2 seconds until you hear a 
confirmation tone, then release. 
3  Press a button to assign a number: 
 to 
.
 A confirmation tone will 
be heard.
4  Dial the number you want to store.
5  Press and release the   button. 
A confirmation tone will be heard.
6  Replace the handset.
If you wish to cancel storing a 
number, replace the handset  
on the base. The storing process 
will be cancelled and any number  
that was previously stored will  
be retained.
Dial a quickdial memory number
1
  Lift the handset and wait for the 
dial tone.
2  Press the   button.
3  Press the quickdial memory 
location button   to   under 
which the number you want is 
stored. The number will be dialled 
out automatically.
Delete a number stored in the 
quickdial memory
1
  Lift the handset.
2  Press and hold the   button 
until you hear a confirmation tone, 
then release. The red LED on the 
mute button will flash.
3  Press the quickdial memory 
location button   to   that you 
want to delete.
4  Press the   button. You will 
hear a confirmation tone. Replace 
the handset on the base.
Redial 
Press to redial 
the last number 
called.
Mute (with  
LED indicator)
During a call,  
mutes your voice 
so your caller 
cannot hear 
you. The red 
LED illuminates 
when the mute 
function is on 
and flashes 
when storing 
a number in 
the quickdial 
memory.
Ringer volume  
switch
Use to select the  
ringer volume: 
high, low or off.
Incoming call  
LED indicator
Red LED flashes  
to indicate an  
incoming call.
Hook switch
Press to make 
a follow-on 
call without 
replacing  
the handset.  
If wall mounted, 
allows your 
handset to rest 
securely  
on the base.
R
Used with switchboard 
services and certain  
BT Calling Features.
Quick dial
Use to store and dial telephone  
numbers in the quickdial memory.
2 3 4 54 6 7 8 9