Duet 550 – Edition 2 – 26.7.00
To dial a number stored using the MEMORY buttons
(M1, M2, M3)
•Lift the handset
•Press the
MEMORY
button (
M1
,
M2
, or
M3
) under which the
number you want is stored. The number is dialled automatically.
To store a number using the QUICKDIAL memory
•Press the
SECRECY
(Program) button. The LED will start
to flash.
•Press the
QUICKDIAL
button and then a number,
0
to
9
, under
which you want to store the number.
•Use the keypad to enter the telephone number.
•Press the
SECRECY
button. The LED will stop flashing.
The number is now stored.
To dial a number stored using the QUICKDIAL memory
•Lift the handset.
•Press the
QUICKDIAL
button and then the number (
0
to
9
)
under which the number you want is stored. The number is
dialled automatically.
General information
Guarantee
Within the 12-month guarantee period:
BT guarantees the product for 12 months if the goods have only
been used for their intended purpose, and have not been subjected to
misuse, or been wilfully or accidentally damaged. The goods have not
been tampered with or repaired by anyone other than BT, its staff or
agents. If a fault does occur in this product, and you bought the unit
yourself, provided that you return it to the place of purchase and
produce your receipt, it will either be repaired or replaced free of
charge. The terms and conditions of this guarantee do not affect your
statutory rights.
Outside the 12-month guarantee period:
If your product needs repair after the guarantee period has ended,
the repair must meet the approval requirements for connection to
the telephone network. We recommend that you call BT on
Free
fone 0800
800 150
, or visit your nearest BT shop, and you will
be informed of our recommended repair agents.
You cannot delete stored numbers but it is possible to overwrite
them simply by storing another number in the same memory location.
Switchboard compatibility
This product is intended for use within the UK for connection
to the public telephone network and compatible switchboards, which
support tone dialling and time break recall. If in doubt please consult
your service provider.
M3
M2
M1
Secrecy
Secrecy
Quickdial
Quickdial
0-9
0-9
Duet 550 – Edition 2 – 26.7.00
Technical information
All items of telephone equipment have a Ringer Equivalence Number
(REN) which is used to calculate the number of items that may be
connected to any one telephone line.
Although you may have any number of sockets, it is important to
limit the number of telephones and other items of apparatus
connected to the line by those sockets, to ensure that each telephone
will ring.
Every telephone or item of apparatus has a Ringer Equivalence
Number (REN). In most cases a standard line should provide enough
current for two or more telephones or items of apparatus, if then the
RENs add up to no more than 4.
Your Duet 550 has a REN of 1. Any telephone provided by BT may
be assumed to have a REN of 1 unless otherwise stated on the base.
Even where the number of telephones has been limited, there is no
guarantee that the different types of telephone on the same line will
ring.
If the REN of 4 is exceeded, the telephone may not ring.
With different telephone types there is no guarantee of ringing, even
when the REN is less than 4.
The product complies with RTTE directive (99/05/EC).
Wall mounting
Use the template in the left hand margin to drill holes in the wall.
Pull out the wall mounting catch on the base unit, reverse it and
replace it. The handset will now be able to rest on the hook when
your Duet 550 is wall mounted.
CE compliant to 89/336/EEC (EMC Directive)
& 73/23/EEC (Low Voltage Directive)
Offices worldwide
The telecommunications services described in this
publication are subject to availability and may be modified
from time to time. Services and equipment are provided
subject to British Telecommunications plc’s respective
standard conditions of contract. Nothing in this publication
forms any part of any contract.
Touchtone
™ is a registered trade mark of
British Telecommunications plc in the UK.
© British Telecommunications plc 2000.
Registered Office: 81 Newgate Street, London EC1A 7AJ.
Registered in England No. 1800000.
Designed by: The Art & Design Partnership Limited.
Printed in China. Duet 550. Issue 1 (7/00) 2
Printed on paper which meets international environmental
standards.
Duet 550 – Edition 2 – 26.7.00
Duet 550
User Guide
1 piece telephone
Scr
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Duet 550 user guide 6pp 10/8/00 3:23 pm Page 2
