BT BT3520 User manual

UK’s best selling phone brand
User Guide
BT3
520
Digital Cordless Phone With Answering Machine
Digital Cordless Phone With Answering Machine
Digital Cordless Phone With Answering Machine
Digital Cordless Phone With Answering Machine

2
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Got everything?
• BT3520 handset
• BT3520 answering machine
base
• 2 x NiMH AAA 500mAh
rechargeable batteries
(already fitted)
• Battery compartment cover
(already fitted)
• Mains power adaptor
(item code 066771)
• Telephone line cord
If you have purchased a
BT3520 multiple pack you will
also have the following for
each handset:
• BT3520 handset
• BT3520 charger
• Battery compartment cover
(already fitted)
• 2 x NiMH AAA 500mAh
rechargeable batteries
(already fitted)
• Mains power adaptor
for the charger
(item code 066771)
This User Guide provides you with all the
information you need to get the most
from your phone.
You must first set up your phone before
you can use it. This doesn’t take long as
it is easy to do. Just follow the simple
instructions on the next few pages.
Need help?
If you have any problems setting up or using your BT3520, please
call our Helpline on Freephone 0800 218 2182*.
Our dedicated advisors are more likely to be able to help you
than the retailer where you made your purchase.
Alternatively, you may find the answer in the ‘Help’ section at the
back of this guide or online at bt.com/producthelp.
Hearing aid?
Please note that the BT3520 works by sending radio signals
between the base and handset. These signals may interfere with
some hearing aids, causing a humming noise.
* Calls made from within the UK mainland network are free.
Mobile and International call costs may vary.

3
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
In this guide
Getting started
Location 5
Setting up 5
Set the time format: 24 or 12hr 6
Set the date and time 7
Setting up the charger 8
Getting to know your phone
Handset 9
Handset display icons 10
Base 11
Navigating the menus 12
Menu map 13
Default 14
Default settings table 14
Using the phone
Switch the handset on/off 15
Make a call 15
Preparatory dialling 15
End a call 15
Receiving calls 15
Earpiece volume 16
Secrecy 16
Make a handsfree call 16
Answer a call handsfree 16
Switch to handsfree during a call 16
Redial 16
To copy a redial number to the phonebook 17
To delete a number from the redial list 17
To delete the entire redial list 17
Keypad lock 18
Handset ringer volume on/off 18
Page the handset(s) 18
Making internal calls 18
Receiving internal calls 18
Transferring calls 19
3-Way conference calls 19
Phonebook
Store a number 20
Entering names 20
Writing tips 20
Dial/view a number 21
Edit a phonebook entry 21
Delete a phonebook entry 22
Delete all phonebook entries 22
Handset settings
Handset ringer melody 23
Handset ringer volume 23
Handset tones on/off 24
Handset name 24
Display 25
Alarm 25
When the alarm goes off 25

4
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Auto answer 26
Base settings
Base ringer melody 27
Base ringer volume 27
Change PIN code 28
Delete handset 28
Caller Display and the Call list
Call list 29
View/dial a number 29
To copy a Call list number to the phonebook 29
View Call details 30
Delete a number 30
Delete the entire Call list 30
Answering machine
Operating the answer machine via the base 31
Switch answer machine on/off 31
Playing messages 31
Adjust volume 31
Call screening 32
Operating the answer machine via
the handset 32
Switch answer machine on/off 32
Outgoing messages 32
Answer and Record 33
Answer only 33
Select answer mode 33
Select male or female outgoing
message voice 33
Record your own outgoing message 33
Play/check outgoing message 34
Reinstate pre-recorded outgoing messages 34
Playing messages via the handset 35
Adjust volume for message playback 35
Delete all old messages 35
To record a memo 36
Memory full 36
Recording time 36
Answer delay 37
Remote access 37
Switch remote access on/off 37
Change remote access security PIN code 38
Switch answering machine on 38
Check for messages 38
Remote access commands 39
BT Services
BT Helpdesk 40
BT 118 500 (Directory enquiries) 40
Call Divert 40
Call Waiting 41
Add / Dial / Delete entries 41
Registering additional handsets 42
Help 43
General information
Safety 45
Product disposal instructions 46
Connecting to a switchboard 47
Guarantee 47
How many telephones can you have? 49
R&TTE 49

5
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Warning
Do not place your BT3520 in the
bathroom or other humid areas.
Handset range
The BT3520 has a range of 300
metres outdoors when there is a
clear line of sight between the base
and the handset. Any obstruction
between the base and handset will
reduce the range significantly.
With the base indoors and handset
either indoors or outdoors, the range
will normally be up to 50 metres.
Thick stone walls can severely affect
the range.
Signal strength
The symbol on your handset
screen indicates when you are in
range. When you are out of range,
the symbol flashes, and the
screen displays SEARCHING.
You should move closer to the base
if this happens to ensure the full
functionality of your phone.
Important
Do not connect the telephone line
until at least one of the handsets is
fully charged.
The base station must be plugged
into the mains power at all times.
Which socket?
: Power socket
: Telephone line socket
Talk/Standby time
Under ideal conditions, fully charged
handset batteries should give about
10 hours talk time or 100 hours
standby time on a single charge.
Getting started
Location
You need to place your BT3520 base within 2 metres of a mains
power and telephone socket so that the cables will reach.
Make sure it is at least 1 metre away from other electrical
appliances to avoid interference.
Your BT3520 works by sending radio signals between the handset
and base. The strength of the signal depends on where you site
the base. Putting it as high as possible ensures the
best signal.
Setting up
1. Plug the mains power cable with the blue ring on the connector
(item code 066771) into the power socket marked on the
back of the base and secure the cable behind the retaining clip.
Plug the other end into the mains socket and switch on.
2. Remove the protective film from the
handset screen and activate the
batteries by pulling the plastic tab
away from the back of the handset.
Mains power cable
Cable retaining clip
Rechargeable batteries
already fitted
Remove this tab
and charge batteries
for 24 hours before use.
Telephone line cord
(pre-installed)

6
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Battery low warning
If the symbol is flashing, you will
need to recharge your handset before
using it.
If the battery icon is flashing and
scrolling digits the battery is
very low and you will need to charge
it for 24 hours before use to ensure
maximum battery performance.
Battery performance
To keep your batteries in the best
condition, leave the handset off the
base for a few hours at a time (after
the initial 24 hour charge).
New NiMH batteries do not reach
full capacity until they have been in
normal use for several days. Running
the batteries right down at least once
a week will help them last as long
as possible.
IMPORTANT
Only use the power supply and
telephone line cord supplied with
your BT3520 otherwise the telephone
may not work.
Under no circumstances use
non-rechargeable batteries. Only
use NiMH rechargeable batteries
with a capacity of 500mAh. Using
inappropriate batteries will invalidate
your guarantee and may damage
the telephone.
The charge capacity of rechargeable
batteries will reduce with time as
they wear out, so reducing the
talk/standby time of the handset.
Eventually they will need to be
replaced. New batteries can be
obtained from the BT3520 Helpline
0800 218 2182*.
Batteries and handset may become
warm during charging. This is normal.
If you have more than one handset
registered to your base, you only
need to set the date and time on one
handset and the other handsets will
be automatically updated.
3. Place the handset on the base to charge the batteries for
at least 24 hours.
The main handset is pre-registered to the base as Handset 1.
This is shown on the display. When the handset is fully charged
the display shows the symbol.
4. After 24 hours plug the telephone line cord into the telephone
wall socket.
Note: If you ever need to remove the batteries, simply slide open
the battery compartment cover and using the finger hole grip the
batteries and pull them out.
Set the time format: 24 or 12hr
1. Press the Menu button to open the main menu.
2. Press or until the display shows HS SETTINGS and
press soft key. DATE & TIME is displayed, press the soft
key again.
3. TIME FORMAT is displayed. Press the soft key and the
current format is displayed. Press or to change
between 24hr and 12hr. Press the soft key, you will hear
a confirmation tone.
4. Press the button to return to standby.

7
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Set the date and time
1. Press the Menu button to open the main menu.
2. Press or until the display shows HS SETTINGS and
press the soft key. DATE & TIME is displayed, press the
soft key again.
3. Press or until the display shows SET TIME and press
the soft key.
4. The current time setting is displayed, enter 2 digits for the
hour and 2 for the minute using the 24hr format (eg for
10.54pm, press ) and press the soft key,
you will hear a confirmation tone.
5. Press and SET DATE is displayed. Press the soft key.
6. The current date setting is displayed, enter 2 digits for the day,
2 for the month and 2 for the year using the dd-mm-yy format
(eg for 23rd May 2011 press ) and
press the soft key, you will hear a confirmation tone
7. Press the button to return to standby.
Your BT3520 is now ready for use.

8
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
BT3520 multiple pack owners only
Location
You need to place your BT3520 charger close enough to a mains
power socket so that the cable will reach.
Setting up the charger
1. Plug the power adaptor cable (item code 066771) into the
underside of the charger and secure the cable behind the
retaining clip.
Plug the other end into the mains wall socket and switch the
power on.
2. Remove the protective film from the handset screen and
activate the batteries by pulling the plastic tab away from the
back of the handset.
3. Place the handset on the charger and charge for at least
24 hours.
Your BT3520 multiple pack is now ready for use.
Mains power cable

9
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Getting to know your phone
Handset Up/Redial list
Press to display the Redial list,
page 16 and to move up through
menu options.
Use to increase the
volume, page 16.
Left soft key/Menu
Use with icons displayed above the
key.
Press to open the
menu, page 12.
Press to select menu options.
Talk
In idle mode, press to make and
receive phone calls, see page 15.
In talk mode, press to switch
handsfree on and off, see page 16.
Down/Calls list
Press to display the Calls list, page
29, and to move down through
menu options.
Use to decrease the
volume, page 16.
Press to replay the message,
page 35.
Press and hold to turn the
ringer on/off, page 18.
Recall
Used when connected
to a switchboard/PBX
page 47, and with some
BT Calling Features.
Right soft key/Secrecy
Use with icons displayed above
the key.
During a call press to mute your
voice so your caller cannot hear
you, page 16.
End call
Press to end the call in progress,
page 15.
Press and hold for 5 seconds to
turn the handset off, page 15.
Press to stop playback,
page 35.
Press to delete the
message, page 35.
Press to skip to the
next message, page 35.
Press and hold to lock/
unlock the keypad,
page 18.
Press and hold to
insert a Pause in the
number to be dialled,
page 20.
Press to make an
internal call, page 18.
Phonebook
Press to open the phonebook,
page 20.
The answer machine handset controls on buttons and
will only work when a message is being played on the handset, page 35.

10
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Handset display icons
These are the symbols you will see on your handset’s display.
Battery
Battery full
Battery 2/3 full
Battery 1/3 full
Low battery, needs charging
Handset
Steady – handset in use
Flashing – incoming call
Handsfree
On - handsfree speaker in use
Int
Steady – internal calls connected
Flashing – incoming internal call
or on hold
Answer machine
On – answer machine on
Flashing – new message received
Off – answer machine off
Alarm
On – alarm set
Flashing – alarm time reached
Keypad lock
Keypad lock on
Ringer
Handset ringer turned off
Antenna
On – in range
Flashing – edge of range
Left/right
There are characters off the display to the
left/right
Press key to scroll through the number
when in the Calls list
Up/down
Menu options exist above/below those
shown on the display
Clear (Right soft key)
Press to mute/unmute during a call
Clears characters when in entry mode
Stops the alarm
Back (Right soft key)
Return to previous menu
Cancel current action
Menu (Left soft key)
Open the main menu
Press to confirm options

11
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Base
Delete
Delete messages
during playback.
Press and hold
to delete all
old messages.
Skip
Repeat current
message.
Press twice to
skip to previous
message.
Vol.-/Vol.+
Adjust speaker
volume during
playback.
Ans. on/off
Switch answering
machine on/off.
Play
Play messages.
Find
Press to page/locate
a handset.
Message display
shows number
of messages
and answering
machine status.
Digits flash
when there are
new messages.
Skip
Skip forward during
message playback.
Stop
Stop message
during playback.

12
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Navigating the menus
Your BT3520 handset features an easy to use menu system. Have
a look at the menu map on the next page.
When the handset is switched on and in standby:
1. Press the Menu button to open the main menu and press
or to scroll through the menu options.
Left soft key
Right soft key
Up and Down keys
Menu navigation
Press or to scroll through the menu options.
Press Left soft key to select a displayed option.
Press Right soft key to go back to the previous display screen.
Press and hold Right soft key to return to the standby
display screen.
Press Right soft key to delete characters or numbers.

13
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Menu map ANS MACHINE PLAY MESSAGE
DELETE ALL
MEMO
ANS ON/OFF
ANS SETTINGS
CALL LIST* DETAILS
STORE NUMBER
DELETE
DELETE ALL
PHONEBOOK* ADD
VIEW
EDIT
DELETE
DELETE ALL
CAPACITY
BS SETTINGS BASE RINGER
RING VOLUME
DELETE HS
CHANGE PIN
HS SETTINGS DATE & TIME
ALARM
RINGER
TONES
HS NAME
DISPLAY
AUTO ANSWER
BT SERVICES HELPDESK
BT 118500
DIVERT ON
DIVERT OFF
DIVERT CHECK
C WAIT ON
C WAIT OFF
C WAIT CHK
REGISTRATION
RESET
*You will need to press the Left soft key to open the
sub menu.

14
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Default
You can reset your BT3520 back to the default settings.
This will not delete your phonebook entries. To delete your phonebook, see page 22 “Delete all
phonebook entries”.
1. Press the Menu button to open the main menu.
2. Press or until the display shows RESET and press .
3. PIN? is displayed, enter the PIN (default 0000) and press .
4. CONFIRM? is displayed, press .
Default settings table
Handset Default Value Base Default Value
Redial List EMPTY System PIN (4-digit) 0000
Call List EMPTY Base Ringer Melody MELODY 1
External Ringer Melody MELODY 1 Ringer Volume VOLUME 5
Internal Ringer Melody MELODY 2
Ringer Volume VOLUME 5 Answer Machine Default Value
Earpiece Volume VOLUME 3 Answer Machine ON/OFF ON
Handset Name HANDSET Answer Mode ANS & REC
Key Beeps OFF OGM PRE-RECORDED OGM
Low Battery Tone ON Answer Delay 5 RINGS
Out of Range Tone ON Message Record Time 3 MINUTES
Ringer On/Off ON Remote Access ON
Auto Answer On/Off ON Remote Access PIN 0000
Date 01/01/11 (4-digit)
Time Format 24 HR
Time 00:00
Alarm OFF
Key Lock OFF

15
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Call timer
Your handset automatically displays
the duration of every external call.
The call time will remain on the
display until 5 seconds after the call
has ended.
Press Right soft key to
delete an incorrect digit when
preparatory dialling.
If you have subscribed to a Caller
Display service, your caller’s number
will also be shown. If the number
is withheld the display will show
WITHHELD. If an exact number match
is found in the Phonebook, the name
will alternate with the number in
the display. See page 29 for more
information.
Internal calls
When you receive an internal call, the
calling handset number will be shown
on the handset display.
If two handsets are engaged on an
internal call and an external incoming
call is received, beeps will be emitted
at both internal handsets. The
internal call has to be ended before
the external call can be answered.
Using the phone
Switch the handset on/off
1. Press and hold for 5 seconds to switch the handset on
and off.
Make a call
1. Press .
Enter the telephone number and the number is dialled.
Preparatory dialling
Use preparatory dialling to see and check the number on the
display before you dial out. The display can only show 11 digits at
a time, if you enter a number with more than 11 digits, will be
displayed to the left of the number to indicate more digits.
1. Enter the number first then press to dial.
End a call
1. Press or place the handset back on the base.
Receiving calls
When you receive an incoming call, the telephone will ring and
the icon will flash. The In use light on the base will also flash.
1. If the handset is not in the base/charger, press to answer
the call.
Or
If the handset is on the base/charger, lift the handset to
answer the call.
2. To turn the handset ringer off when receiving a call press the
Right soft key . The display will briefly show VOLUME OFF.

16
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Earpiece volume
Adjust the volume during a call:
To increase the volume, press .
To decrease the volume, press .
The first press will show the current volume level, subsequent
presses will adjust the level from 1-5.
Secrecy
During a call, you can talk to someone nearby without your
caller hearing.
1. Press Right soft key . The display shows MUTE ON and your
caller cannot hear you.
2. Press Right soft key again to return to your caller.
Make a handsfree call
1. Enter the number then press twice. is displayed. You
hear your call over the handset loudspeaker. Press to
switch the call between the earpiece and the loudspeaker.
2. Press to end the call.
Answer a call handsfree
When the phone rings:
1. Press after the call has been answered. The call is
transferred to the handset loudspeaker.
Switch to handsfree during a call
1. During a call, press to put the call on the loudspeaker.
To switch handsfree off and return the call to the earpiece,
press again.
Redial
Your BT3520 stores the details of the last 10 calls
made into a redial list. Stored redial numbers can be up to
20 digits long.
1. Press to display the Redial list.
If a redial number is stored in the
phonebook, the caller’s name will
be displayed instead of the number.
If there are no redial numbers
stored, LIST EMPTY will be
displayed.
The earpiece volume can only be
changed when you are on a call.
There are 5 volume levels.
Handsfree
Handsfree lets you talk to your caller
without holding the handset and means
that other people in the room can listen to
your conversation over the loudspeaker.
During a handsfree call, press
or to change the volume.

17
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
2. Press or to select any of the last 10 numbers called.
3. Press to dial the number displayed.
To copy a redial number to the phonebook
1. Press to display the Redial list.
2. Press or to display the number you want and press
Left soft key to select.
3. STORE NUMBER is displayed, press Left soft key to select.
4. NAME is displayed. Enter a name using the keypad and press
Left soft key to confirm.
5. The number is displayed, press Left soft key to confirm.
6. Press or to select a ringtone to associate with the
name/number and press to confirm.
7. Press Right soft key to return to standby.
To delete a number from the redial list
1. Press to display the Redial list.
2. Press or to display the number to be deleted and
press Left soft key .
3. Press or to display DELETE and press Left soft key
to select and the number will be deleted.
4. Press Right soft key to return to standby.
To delete the entire redial list
1. Press to display the Redial list.
2. With any of the redial numbers displayed, press Left soft
key .
3. Press or to display DELETE ALL and press
Left soft key to select.
4. CONFIRM? is displayed, press Left soft key again
to confirm and delete the entire redial list.
5. LIST EMPTY is displayed. Right soft key to return to
standby mode.
The icon is displayed when
the phone number is too long
to be fully shown on the screen.
Press to allow you to scroll
through the rest of the numbers.
If you dial the same number on
more than one occasion, only the
most recent call details will be
stored, any previous occurrence
will be deleted.
For help with entering names see
page 20.

18
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Keypad lock
You can lock the keypad to prevent accidentally dialling numbers
while carrying the handset around.
1. Press and hold until the icon is displayed.
2. To unlock the keypad, press and hold again.
Handset ringer volume on/off
1. Press and hold to switch the handset ringer on or off.
If you switch the ringer off, the icon will be displayed.
Page the handset(s)
You can alert handset users that they are wanted or locate a
missing handset.
1. Press on the base. The handset(s) will beep and display
PAGING.
2. Press on the base again or press any button on the
handset to stop the handset beeping.
Making internal calls
If you purchased a BT3520 multi-pack, you can make internal
calls between handsets.
1. Press and enter the number of the handset you want
to call (or press to call all handsets registered to the
base). The other handset(s) will ring and display your handset
number to let the handset user know who is calling. When the
other handset answers hold your conversation as normal.
2. Press to end the call.
Receiving internal calls
When you receive an internal call, the calling handset number will
be shown on the handset display.
1. Press to answer the call,
You cannot answer the beeping
handset as you would a call.
Stopping the beep at a handset
stops the beep on all handsets.
If you only have two handsets you
do not need to enter the handset
number to call.
If two handsets are engaged on
an internal call and an external
incoming call is received, beeps
will be emitted in the earpiece of
both handsets and the incoming
call details will be shown on the
screen. The internal call has to be
ended before the external call can
be answered.
When the keypad is locked incoming
calls can still be answered. Once the
call has ended, the keypad lock is
re-activated.
IMPORTANT
Emergency calls to 999/112 CAN be
made while the keylock is on.

19
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Transferring calls
If using a BT3520 multi-pack, you can transfer an external call to
the other handset.
1. During an external call, press .
2. Enter the number of the handset you want to call. The other
handset will ring and display your handset number to let the
handset user know who is calling. The external caller will be
put on hold and hear music.
3. When the other handset answers, press to transfer
the call.
3-Way conference calls
If you are using a BT3520 multi-pack, you can hold a
3-way conference call with an external caller and another
internal handset.
1. During an external call, press .
2. Enter the number of the other handset you wish to join the
call. The other handset will ring.
3. The other handset answers the caller by pressing .
4. Press and hold the button for 2 seconds, the display
shows CONFERENCE. The external caller, and the two internal
handsets are all connected to the conference call.
5. Any caller can leave the conference by pressing .
If you only have two handsets you
do not need to enter the handset
number to call.
If you only have two handsets you
do not need to enter the handset
number to call.

20
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
If there are no stored entries, LIST
EMPTY will be displayed.
If you try to store a new entry and
the phonebook is full, you will hear
an error tone and PB FULL will be
displayed.
If the number you store has more
than 11 digits, the display shows
to the left of the number to indicate
more digits ahead. Press or
to scroll backwards or forwards
through the number.
Insert a pause in a number
You may need to do this if you are
connected to a switchboard. When
entering a number, usually after
entering the switchboard access code
(e.g. 9) press and hold until P
appears in the display.
Phonebook
You can store up to 50 names and numbers in the phonebook
of each of your BT3520 handsets for quick and easy dialling.
Numbers can be up to 20 digits and names up to 12 characters.
Phonebook entries are stored alphabetically.
Store a number
1. Press to open the phonebook. The first entry or EMPTY
is displayed.
2. Press Left soft key , ADD is displayed, press to select.
3. NAME is displayed, enter the name for the entry using the
keypad (see ‘Entering names’ below if you need help).
Press to store.
4. NUMBER is displayed, enter the number for the entry using the
keypad and press to save.
5. Press or to select a ringtone to associate with the
name/number and press Left soft key to confirm.
6. Press Right soft key to return to standby.
Entering names
Use the keypad to enter the letters shown on the buttons,
e.g. to store DAN:
1. Press once to enter D.
2. Press once to enter A.
3. Press twice to enter N.
Writing tips
If you make a mistake, press Right soft key to delete the last
character or digit.
Press repeatedly to enter the following: SPACE – 1
Press repeatedly to enter the following symbols: * ? / \ ( )
Press repeatedly to enter the following symbols: # & ‘ , -
If the next letter is on the same
button that you have just pressed,
wait until the cursor moves to the
right before trying to enter it.