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Technical information
Environment
Your Synergy 900 should be kept free of dust,
moisture, high temperature, vibration and should not
be exposed to direct sunlight. Do not stand it on
carpets or other surfaces which generate fibres or
place it in locations which prevent the free flow of air
over its surfaces.
If the power fails
This equipment is not designed for making
emergency calls when the power fails. Alternative
arrangements should be made for access to
emergency services.
How many phones can you have?
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. The Synergy 900 base station has a
REN of 1. Additional Handsets have a REN value of 0.
Any other instrument provided by BT may be assumed
to have a REN of 1 unless stated otherwise. A total
REN of 4 is allowed.
Approval
Connection to the BT telephone network.
Synergy 900 is fully approved for connection to the
BT network provided it is used according to the
instructions in this guide. The telephone lines must
provide Multi-frequency (Touch Tone) dialling
capabilities.
It may be connected to Direct Exchange Lines and
switchboards (PBXs) with new plan (plug and
socket) arrangements.
Connecting to switchboards.
Synergy 900 is only approved for use with a
compatible switchboard including those which do not
provide secondary proceed indication. If you would
like a list of suitable switchboards, contact BT on
154. If you do have a compatible switchboard, it
cannot be guaranteed that the telephone will operate
correctly under all possible conditions of connection.
If you have any difficulties, contact BT on 154.
Generally Synergy 900 can be connected to any
switchboard where a simple modern telephone can
be used to make and receive calls. Synergy 900 is
suitable for connection to switchboards which return
secondary proceed indication.
Warning
The apparatus is only designed to be operated in a
normal office or domestic environment where the
relative humidity does not exceed 75%. It should not
be used in bathrooms or near water.