Technical information
Official approval
The Response 115 is tested and approved for
connection to the UK telecommunications
network, provided that it is used in accordance
with the guidelines in this booklet.
You may connect it to
• direct exchange lines;
• extensions with new plug and socket;
• arrangements provided with these direct
exchange lines;
• compatible PBX’s.
This product is designed for UK use only.
Using it overseas may violate local laws.
Ringer Equivalence Number (REN)
If you connect too many telephones or other
devices to your telephone line, they may not ring
correctly. To work out how many telephones
and devices can be connected to your line, add
together all the RENs of all the apparatus you
wish to connect. If this total exceeds 4, they may
not ring or operate correctly.
The REN of your Response 115 and the majority
of telephones in the UK (unless otherwise
marked) is 1.
If you are connecting your Response 115 to
a PBX
Your Response 115 is only approved for use with
compatible PBX’s. For a list of suitable PBX’s,
telephone BTon Freefone 0800 800154. If you
do not have a compatible PBX, the Response115
cannot be guaranteed to operate correctly under
every possible condition of connection.
Safety advice
• Don’t install the Response 115 near a sink,
bath or shower. Electrical appliances can
cause serious injury if used when you are
wet or standing in water.
• Don’t install the Response 115 where the
various leads can be tripped over or walked
on. This may cause injury or damage to the
leads and your Response 115.
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