User Guide EN Owner manual

111Dialog 4223 Professional/Dialog 4225 Vision
Accessories
Headset (optional)
To install the headset, see section “Installation” on page 117.
The following headset features are available.
Answer calls
Í
Press to answer.
The Headset key lamp is turned on.
Note: When the phone is set for Headset Preset, you can also
press the flashing Line key to answer the call. See section
“Headset Preset” on page 112.
í Press to terminate the headset call.
Make calls
Í
z Press and dial the number.
The Headset key lamp is turned on.
Note: When the phone is set for Headset Preset, you can also
dial the number directly without pressing the Headset key, or
you can press a Line key instead of the Headset key. See section
“Headset Preset” on page 112.
í Press to terminate the call.
From headset to handset
u Lift the handset.
From handset to headset
Í
Press.
The Headset key lamp is turned on.
d
Replace the handset.