BT 3510 Specification sheet

UK’s best selling phone brand†
Quick Set-up and User Guide
BT3510
Digital Cordless Phone with Answering Machine

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Important – please read first2
• Only use the line cord, power supply and rechargeable batteries supplied with
your phone.
• Make sure that the power supply is connected to a known working socket.
• Connect your phone to the power supply and allow the batteries to charge for
24 hours before connecting the line cord to your telephone socket.
• To make sure you get the best range and reception from your handset, avoid
interference by placing the base unit away from large metal objects such as
fridge freezers and microwave ovens or electronic products such as computers
and TVs.
Answer machine – handy hint
Make sure the telephone is set to Answer and record and that the Ring delay
is set to answer before any voicemail service i.e. BT Answer 1571, or similar.
The default setting is four rings. If you want to change this, please see page 41.
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3
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Check box contents
Handset Base
Telephone line cord
(pre-installed)
Handset Charger Mains power adaptor
(item code 066270)
2 x AAA Ni-MH 550 mAh
rechargeable batteries
(already in handset)
Mains power adaptor
(item code 066270)
2 x AAA Ni-MH 550 mAh
rechargeable batteries
(already in handset)
IMPORTANT
Only use the mains power adaptors, cables and rechargeable batteries supplied in this box or this
product might not work. Any replacement rechargeable batteries must be of the same type.
BT accepts no responsibility for damage caused to your BT3510 if you use any other type of batteries.
Contents for each additional handset (multipacks only)

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Where to put your phone
• Place the base within
3 metres of a mains power
socket and 1.8 metres of a
phone socket so the cables
will reach.
• Make sure it’s at least a
metre away from other
electrical appliances to
avoid interference.
• Don’t place the phone or
base in a bathroom or
other humid area.
• The product works by
sending radio signals
between the handset and
base. The strength of the
signal depends on where you
position the base. Putting it
as high as possible can help
give you the best signal.
IMPORTANT
• Don’t connect the phone line
to a phone socket until the
handset is fully charged.
• The base station should
be plugged into the mains
power socket all the time.
1. Plug the mains
power adaptor into
the base, with the
cable clipped in the
groove provided.
2. Plug the other end
of the power adaptor
into the wall power
socket and switch on.
Quick set-up guide4
1 Plug in
The phone line cord is pre-installed but don’t
plug the other end into the wall socket yet.
1
2

Quick set-up guide 5
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Talk/Standby time
Under ideal conditions, the
handset batteries should give
up to 12 hours talk time or
120 hours standby on a single
charge. (This doesn’t mean you
can unplug the base or leave
the handset for this length of
time without charge).
Please note that new Ni-MH
rechargeable batteries don’t
reach full capacity until
they’ve been in normal use
for several days.
Battery low warning
The icon will flash, you’ll
see the message Battery
Low in the display and hear a
warning beep every minute,
to indicate that you need to
recharge your handset before
you can use it.
You can remove the display
message by selecting Hide. If
the battery charge completely
runs out, the display will show
Batteries flat. Please
charge . You must recharge
the handset batteries before
you can use the handset. If the
charge completely runs out the
handset will switch off. Place
the handset on the base or
charger to charge.
Quick set-up guide 5
2 Activate the batteries and
follow the Set-up wizard
1. Activate the batteries by pulling the plastic tab
away from the back of the handset.
Rechargeable batteries
already fitted
Remove this tab
and charge batteries
for 24 hours before use.
2. The handset will check for a link with the base
station, once found the screen will show Please set
the time and date . The set-up wizard will take you
through the steps for setting the time and date,
recording your outgoing message for the answer
machine and adding contacts.
Press the button if you want to follow
the set-up wizard prompt or the button
to continue to the next prompt until set-up
is complete.

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Quick set-up guide6
Battery performance
• To keep the batteries in the
best condition, leave the
handset off the base for a
few hours at a time.
• Running the batteries right
down at least once a week
will help them last as long
as possible.
• After charging your handset
for the first time, subsequent
charging time for the
batteries is approximately
8 hours.
• The charge capacity of
rechargeable batteries will go
down over time, which will
reduce the talk and standby
time. Eventually they’ll need
replacing. For details on how
to get replacement batteries,
call the helpline on 0800
145 6789*.
3. Once set-up is complete your handset will display
Please check line cord , place the handset on the
base to charge until step 4.
4. After 24 hours, plug the phone line cord into the
phone wall socket.
IMPORTANT
Charge the handset batteries for 24 hours or your
phone might not work.
Set up your additional handsets (multipacks only)
1. For additional handsets and chargers: plug the
mains power adaptor into the back of the charger
and plug the other end into the mains wall socket
and switch on the power.
2. Activate the batteries as explained on page 5.
3. Place the handset on the charger to charge for
24 hours.
1

Quick set-up guide 7
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If you ever need to remove the batteries, simply
slide open the battery compartment cover and
ease out the batteries.
3 Go!
Your BT3510 is now ready
for you to use
• For help setting the date and time, go to page 58.
• For instructions on making a call, go to page 19.
• For help personalising your phone’s settings, go to
page 50.
• For instructions on using the answer machine,
go to page 37.
Or, you may find the answer in the Help section
on page 68 or see our online frequently asked
questions at www.bt.com/producthelp
Alternatively, call the Helpline on 0800 145 6789*.
* Calls made from within the UK mainland network are free. Mobile and
international call costs may vary.
Quick set-up guide 7
Using your BT3510 on
a broadband line?
If so, you need to fit an ADSL
microfilter between the phone
line cord and the phone
socket. You can get BT
ADSL microfilters from
www.bt.com/shop
If you cannot find the answer
to your problem in this user
guide, then please call our free
Helpline on 0800 145 6789*.
Our dedicated advisors are
more likely to be able to help
you than the retailer where you
made your purchase.

If you need some help, call us on 0800 145 6789* or go to www.bt.com/producthelp
8In this guide
Getting to know your phone
Handset buttons ..............................12
Handset display/display icons ...........14
Finding your way around your phone 15
Menu map .......................................16
Base ................................................18
Using the phone
Switch the handset on or off .............19
Make an external call .......................19
Preparatory dialling .........................19
End a call.........................................19
Receive a call ...................................20
Call Waiting .....................................20
Mute ...............................................21
Incoming speech/Handsfree volume .21
Handsfree .......................................21
Make a handsfree call .......................21
Answer a call handsfree ....................22
Switch to handsfree during a call ......22
Redial .............................................22
Voicemail (1571) .............................23
Do not disturb .................................23
Keypad lock .....................................24
Turn the handset ringer on or off .......24
Turn Eco mode on or off ...................25
Finding handset (paging) .................25
Contacts
Store a contact name and number ....26
Character map .................................27
View/dial a contact ..........................27
Edit a contact entry ..........................28
Delete a contact entry ......................28
Delete all contacts ...........................28
View the contact memory status .......28
Copy a contact (only available if you
have more than one handset) ...........30
Copy all contacts (only available if you
have more than one handset) ...........31
Speed dial
Save a speed dial entry .....................32

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In this guide 9
Dial a speed dial entry ......................33
Edit a speed dial entry ......................33
Delete a speed dial entry ..................33
Caller Display and the Calls list
Caller Display ...................................34
Calls list ...........................................34
View/dial an entry in the Calls list ......35
Save a Calls list entry to your contacts 35
Delete an entry in the Calls list ..........36
Delete the entire Calls list .................36
Answer machine
Using the answer machine from
the handset .....................................37
Switch the answer machine on or off . 37
Outgoing messages..........................37
Record your own outgoing message..38
Play the current outgoing message ...38
Reinstate the pre-recorded
outgoing message ...........................39
Record a memo ...............................40
Set the answer mode
(Answer & Record or Answer Only) ....40
Set the answer delay ........................41
Set the maximum message length .....41
Set the message alert on or off .........42
Call screening ..................................42
Message playback using the handset 43
Delete all old (played) messages .......44
Using the answer machine from
the base ..........................................45
Switch the answer machine on or off . 45
Message playback using the base ......45
Delete all old (played) messages .......46
Remote access .................................46
Set the remote access PIN for the
first time .........................................47
Change the remote access PIN ..........47
Turn remote access on/off ................48
If you forget to switch on your
answer machine ...............................48

In this guide
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10
Operating your answer
machine remotely ............................49
Settings
Set the handset ringtone for external
or internal calls ................................50
Set the handset ringer volume ..........50
Turn the handset tones on or off .......51
Change the handset name ................52
Change the handset display contrast .52
Change the call settings ...................53
Set the base ringtone .......................53
Set the base ringer volume ...............54
Set a PBX access code ......................55
Change the system PIN.....................56
Reset the handset or base settings ....56
Reset the handset or base user data ..57
Clock/Alarm
Set the time format (12 or 24 hour) ..58
Set the time and date .......................58
Set an alarm ...................................59
Stopping the alarm when it goes off . . 59
BT Calling Features
Pre-stored numbers in the Calling
Features menu .................................60
Using Call Diversion ..........................61
Using Ringback ................................61
Using Call Waiting ...........................62
Using Reminder call .........................62
Using Call Barring ............................63
Using Anonymous call reject .............63
Using additional handsets
Register an additional handset ..........64
De-register a handset ......................65
Make an internal call
between handsets ............................66
Transfer a call ...................................66
Hold a 3-way call .............................67
Help ...............................................68

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In this guide 11
General information
Safety information ...........................72
Cleaning ..........................................73
Environmental .................................73
Product disposal instructions ............73
Guarantee .......................................74
Technical information .......................75
Connecting to a switchboard ............75
Recall (R) .........................................75
R&TTE .............................................75
Declaration of Conformance .............75

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12 Getting to know your phone
Handset buttons
Left option button
Press to enter the main menu, access sub menus and confirm
options shown on the display above the button.
Vol/Up
In standby, press to change the ringer volume.
In talk mode, press to increase the incoming speech volume.
In menu mode, press to scroll up through the options.
Contacts
Press to access your stored Contacts.
Talk/Handsfree
In standby mode, press to make and receive calls, see page 19.
In talk mode, press to switch handsfree on and off, see page 21.
Calls/Down
In standby, press to open and scroll through the Calls list, see page 34.
In talk mode, press to decrease the incoming speech volume.
In menu mode, press to scroll down through the options.
1 (Speed dial)
In standby, press and hold to dial BT 1571 or
your stored speed dial number, see page 23.

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Getting to know your phone 13
Right option button
Press to confirm the option displayed on the screen above the button,
to delete or go back to the previous screen.
In answer machine mode, deletes the current message playing.
ECO/R (Recall)
In standby, long press to turn Eco mode on/off, see page 25.
R (Recall) for use with some BT Calling Features and when
connected to a switchboard/PBX.
End call/on or off
Press to end a call.
In standby, press and hold to switch the handset on or off, see page 19.
In menu mode, press to return to update to home screen.
2-9 (Speed dial)
In standby, press and hold buttons 2-9
to dial a stored speed dial number, see page 32.
Press and hold to turn handset ringer on or off.
Press and hold to lock or unlock the keypad.

Getting to know your phone
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14
Handset display
Shows handset battery status.
Scrolls when the handset is charging.
Empty frame flashes when battery
needs recharging.
On – missed call in the Calls list*.
On - incoming call received.
On - outgoing call made.
On – handsfree speaker on.
On – Eco mode is on.
The keypad is locked.
Handset ringer is switched off.
On – answer machine on.
Off – answer machine off.
Flashing – new answer machine message.
Memory full shows if answer machine memory
is full.
On – alarm is set.
Flashing – alarm time has been reached.
Off – alarm off.
When on, indicates that you are listening
to answer phone messages or recorded memos.
When on, indicates that you are recording
a new outgoing message or memo.
UnMute/Mute Indicates when Mute is on or off.
Handset display icons
Handset name
* For full details of who has called you please make sure you have subscribed to Caller Display from your network provider.
A fee may be payable. Find out more at www.bt.com/callingfeatures

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Getting to know your phone 15
Finding your way around your phone
Your BT3510 has an easy to use menu system.
Each menu has a list of options, which you can see on the menu map on the next page.
When the handset is switched on and at the home screen:
1. Select Menu by pressing the Left option button to open the main menu.
2. Use the or button to scroll through the available menu options.
3. When the menu you want is displayed, press the Left option button .
4. Use the or button to scroll through the available sub menu options.
When the sub menu you want is displayed, press the Left option button .
Select Back by pressing the Right option button .
To exit a menu and return to the home screen, press .
If no buttons are pressed for 30 seconds, the handset returns to the home
screen automatically
Left option button
Press to select the option
displayed on the screen above
the button or to confirm entry.
Right option button
Press to select the option
displayed on the screen above
the button or to go back a step.
Navigation buttons
Scroll up or down through
the menu options.

Getting to know your phone
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16
Menu map
Answer Phone Play Messages (x new msg)
Delete all old messages
Outgoing Message
Record Memo
Answer phone on/off
Answer mode
Answer settings
Do Not Disturb On
Off
Clock/Alarm Alarm Off
On Once
On Daily
Mon to Fri
Sat & Sun
Time and Date
Time Format 12 hr
24 hr
Speed dial list Speed dial 1-9
Calling Features Check Diversion
Cancel Ringback
Call Waiting
Reminder Call
Call Barring
Anon. Call Reject

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Getting to know your phone 17
Settings Sounds Ringing External Ringtone
Internal Ringtone
Ringing Volume
Handset Tones Keypad Tones On
Off
Confirmation Tones On
Off
Handset name
Display Contrast Level 1-5
Call Settings Auto Answer
Auto End Call
Auto join calls
First Ring
On
Off
Base Settings Ringing
PBX Code
Software Version Version:
Registration Register Handset
De-register handset
Change System PIN
Reset Settings
Clear user data
Contacts menu
Accessed by pressing
the button
Add new contact
Edit Contact
Delete Contact
Copy contacts (only available if
more than one handset registered)
Memory Status
Delete all contacts
Calls menu
Accessed by pressing
the button
Save Number
Delete Call
Delete All

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18
Base
Play
When you have new
messages, the button
will flash. Press once to
play new messages.
Press during playback
to pause playback.
Green In use light
On when there is
power to the base.
Flashes when the line
is in use or registration is
taking place.
Red charging light
Battery charging light.
On when the handset
is in the base charging.
Vol-
Decrease the speaker
volume during playback,
the call screening volume
during idle and the base
ringer volume.
Vol+
Increase the speaker
volume during playback,
the call screening volume
during idle and the base
ringer volume.
Skip>>
During playback, press to
skip forward to the start
of the next message.
Skip<<
During playback, press once
to skip back to the start of the
current message. Press twice
to skip back to the start of the
previous message.
Stop
Press to stop
message playback.
Delete
Press once to delete the
message during playback.
In idle mode, press to delete
all old messages.
Answer on/off
Press to turn the answer
machine on or off.
When set to On, the text
‘On’ will light up on
the button.
Find
Press to ring all registered
handsets, helpful
for finding a missing
handset, see page 25.
Also used during the
registration process,
see page 64.

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19
When you make a call, the
green In use light on the
base comes on.
Auto end
If auto end is set to On you
can end a call by placing the
handset back in the base.
If auto end is set to Off, you’ll
need to press to end the call.
Auto end On is the default
setting. See page 53.
To switch the handset off
1. Press and hold until the handset turns off.
To switch the handset on
1. Press and hold until the handset turns on.
Make an external call
1. Press .
2. When you hear the dial tone, enter the number.
Preparatory dialling
1. Enter the number first. If you make a mistake select
Del. by pressing the Right option button to
delete the last digit.
2. Press to dial.
End a call
1. Press .
Using the phone
Call timer
Your handset will automatically
time your outgoing and
incoming calls. The handset
shows the length of time both
during and for a few seconds
after your call.

Using the phone
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20
Auto answer
If auto answer is set to On you
can answer a call by lifting the
handset off the base.
If auto answer is set to Off,
you’ll need to lift the handset
off the base and press too.
Auto answer On is the default
setting. See page 53.
Call Waiting
To switch your call waiting
service on or off, see page 62.
Out of range warning
When the handset is out of
range of the base, the display
will show
Searching for base… ,
the backlight will turn up to
100% to indicate the alert
message and you will hear a
warning tone. You need to
move back within range of the
base station.
If you move out of range when
you’re on a call, you’ll lose your
connection. The handset will
automatically re-connect to
the base when you move back
within range.
Receive a call
When you receive a call, the phone rings and the
display shows
Incoming call and . If you’ve got a
caller display service, the display shows the caller’s
number if it’s available or the caller’s name if it
matches an entry stored in your contacts list.
1. Press to accept the call.
Call Waiting
If you’ve got a call waiting service and it is switched
on, your phone will alert you to a second incoming
call if you’re already engaged on an external call.
1. You’ll hear the call waiting tone and if you also
have caller display the display will show the number
of the caller, or the name if it matches an entry in
your contacts.
2. Press or select Switch by pressing to
answer the new call and your first caller is put on hold.
3. Press or select Switch by pressing to
toggle between the two callers.
4. Press to hang up the current call.
5. If you hang up a current call, your phone will ring
back to reconnect you to your original call if that
caller is still connected.