AASTRA 4225 for MX-ONE Telephony Switch - Manual (Page 118)

Accessories
Dialog 4223 Professional/Dialog 4225 Vision 118
Headset (optional)
To install the headset, see section “ Installation ” on page 124.
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 119 .
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 119 .
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.