Offices in Europe, North America,
Japan and Asia Pacific.
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 1998.
Registered Office: 81 Newgate Street, London EC1A 7AJ.
Registered in England No. 1800000.
Printed in Hong Kong. Duet 450 Issue No.1 (09/98).
Designed by The Art & Design Partnership Limited.
CE compliant to 89/336/EEC
(EMC Directive) & 73/23/EEC
(Low Voltage Directive)
APPROVED
for connection to
telecommunication systems specified
in the instructions for use subject to
the conditions set out in them
Duet 450 ~ Edition 3 ~ 1st October 98
