User guide

79Dialog 4422 IP Office
Accessories
Accessories
Headset (optional)
How to install the headset, see section “Installation” on page 89.
The following headset functions 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 or the flashing Monitoring
key to answer the call. See section “Headset Preset” on
page 80.
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
dial the number directly without pressing the Headset key,
or press a Line key instead of the Headset key. See section
“Headset Preset” on page 80.
í Press to terminate the call.
From headset to handset
u Lift the handset.