BT Duet 600 User Manual

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.
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 600 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. This equipment complies with the essential requirements of
the Radio Equipment and Telecommunications Terminal Equipment
Directive, 1995/5/EC.
1E
7 1
BT
r
Wall mounting
Use the template in the left hand margin to
drill holes in the wall.
Pull out the handset catch on the base unit,
reverse it and replace it The handset will now be
able to rest on the hook when your Duet 600
is wall mounted.
1 ; 1
BTr
Offices worldwide
Duet 600
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.
Touchtoni.
is a registered trade mark of
British Telecommunications plc in the UK.
C British Telecommunications plc 2001.
Registered Office: 81 Newfiate Street. London EC1A 7A.1.
Registered in England No. 1800000.
Designed by: The Art
&
Design Partnership Limited.
Printed in China. Duet 600. Issue 3 (11/01) 1
Compact Telephone
r
This product is intended for connection to analogue public switched
LIB848Y2
telephone networks and private switchboards in the United Kingdom.