BT Defender 100 User Manual page 6

5655 BT Defender UG [2]
6 Getting started
Headsets are not supplied.
4/2/04 10:55 am
BT Defender 100 – Edition 2 – 03.02.04 – 5655
5. Plug in the supervisor's headset (optional).
This allows a supervisor to 'listen in' to calls only. There is
no microphone connection so they cannot speak to callers.
Slot the cable along the cable channel.
6. Plug in the telephone line cord.
Page 6