Ericsson 250 - Manual (Page 46)

OPTIONAL EQUIPMENT
46
BusinessPhone 250 - Basic Telephone
BusinessPhone 50 - Basic Telephone
HEADSET The following headset functions are available.
Note: To use the headset functions your telephone has to be
equipped with option unit DBY 410 02. How to install the
option unit, see separate installation instructions provided with
the option unit.
Activate/Deactivate
the headset
Headset Press the headset key to activate/deactivate the
headset (pre-programmed)
See section ”Description”. All calls can be handled via the headset.
Answer calls
Line Press the flashing line key to answer
Press to terminate a headset call
Make calls
Dial the number
Press to terminate the call
Headset to handset
Lift the handset
Handset to headset
Headset Press the headset key (pre-programmed)