BT 75 User Manual page 27

All items of telephone equipment have
a Ringer Equivalence Number (REN),
which is used to calculate the number
of items which may be connected to
any one telephone line. Your BT
Response 75 Plus has a REN of 1. A
total REN of 4 is allowed, if the total
REN of 4 is exceeded, the telephones
may not ring. With different telephone
types there is no guarantee of ringing,
even when the REN is less than 4.
Only use approved power supply, item
code 872300.
This equipment complies with the
essential requirements of the Radio
Equipment and Telecommunications
Terminal Equipment Directive,
1999/5/E.
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.
BT Response 75 – Issue 2 – Edition 1 – 7/10/03
The BT Response 75 is intended to be
connected to analogue networks and
private switching systems in the United
Kingdom.
It may also be connected to switching
systems that use tone (MF) or pulse
(LD) signalling, with earth or timed
break recall. If in doubt, your switch
supplier or maintainer should be able to
offer help. Advice on connection to BT
switching systems can be obtained by
dialling BT Freefone
If you do not have a compatible
switchboard, it cannot be guaranteed
that your BT Response 75 will operate
correctly under all possible conditions
of connection.
1471 feature will not work on a
switchboard.
Generally your BT Response 75 can be
connected to any switchboard where a
simple modern telephone can be used
to make and receive calls. It cannot be
used to answer calls on PBXs configured
for dial 8 night service unless a suitable
adaptor is purchased (not available
from BT).
.
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