BT 900 - Manual (Page 11)

8
6. Connect the telephone line cord
If you do not have modern phone sockets, call
Freefone
0800 800 150 and ask for a BT
engineer to come and fit the correct type. This
is a chargeable service.
NOTE
Take care that the telephone line cord and
power cable plugs are connected to the correct
sockets. Incorrect placement could damage the
unit.