If you need some help, call us on 0800 145 6789* or go to bt.com/producthelp
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General information
Important
This equipment is not designed for making emergency
phone calls when the power fails. Alternative
arrangements should be made for access to
emergency services.
This product is intended for connection to analogue
public switched telephone networks and private
switchboards in the United Kingdom.
Replacing the handset batteries
After a time, you might find that the handset batteries
run out of charge more quickly. This is a standard sign
of wear and the batteries will need replacing.
1. Open the battery compartment cover.
2. Lift the battery out and remove the batteries.
Replace with two new AAA Ni-MH 550mAh
rechargeable batteries.
3. Replace the battery compartment cover.
Caution
Don’t immerse batteries in water, throw them into a fire
or dispose of them with ordinary domestic refuse.
BT accepts no responsibility for damage caused to your
BT3540 by using any other types of batteries.
There is a risk of explosion if incorrect batteries are fitted.
Safety information
• Only use the power supply suitable for the BT3540.
Using an unauthorised power supply will invalidate
your guarantee and may damage the phone. The item
code for the base mains power supply is 066270 . If
you’ve bought a multiple pack, the item code for the
charger mains power supply is 066270.
• Use only the approved rechargeable batteries supplied.
Spare rechargeable batteries are available from the
BT3540 Helpline on 0800 145 6789*.
• Don’t open the handset (except to replace the
handset batteries) or the base. This could expose you
to high voltages or other risks. Contact the Helpline
on 0800 145 6789* for all repairs.
• If the keypad is locked, it is still possible to make calls
to 999 and 112 emergency numbers by dialling the
number then pressing
.
• Radio signal transmitted between the handset and
base may cause interference to hearing aids.
• It is recommended that advice from a qualified
expert be sought before using this product in
the vicinity of emergency/intensive care medical
equipment.
• It is recommended that if you have a pacemaker
fitted you check with a medical expert before using
this product.
• Your product may interfere with other electrical
equipment, e.g. TV and radio sets, clock/alarms and
computers if placed too close.
• It is recommended that you place your product
at least one metre away from such appliances to
minimise any risk of interference.
