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35
DF60 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.
The provided handset must only be connected to the socket on
the side of the machine.
Another approved handset may be connected but the apparatus
has been calibrated and approved for the provided handset.
While operation may be possible initially, changes to or
modernisation of the network taking place in the normal course
of events may result in the apparatus being connected to a
network service with which it is not designed to be compatible.
Failure of the apparatus to work under these circumstances may
not be the responsibility of the network operator.
In the unlikely event of any such problems occurring, the user
should contact the supplier or maintainer of the apparatus.
Difficulty may be experienced when making calls from other
apparatus. Such difficulties may include:
• Difficulties in making a call
• Problems in telephone conversation being experienced by both
parties to the call.
Connecting to switchboards
Your DF60 is approved only for use with a compatible
switchboard including those which do not provide secondary
proceed indication.
If you do have a compatible switchboard, it cannot be guaranteed
that the DF60 will operate correctly under all possible conditions
of connection.
If you have any difficulties, contact BT on 0800 800 152
Safety warning
Interconnection circuits should be such that the equipment
continues to comply with the requirements of 4.2 of EN 41003 for
TNV circuits and 2.3 of EN 60950 for SELV circuits, after making
connections between circuits.
Interconnection directly, or by way of other apparatus, of ports
marked Safety Warning. See instructions for use. with ports
marked or not so marked may produce hazardous conditions on
the network. Advice should be obtained from a competent
engineer before such a connection is made.