AASTRA 4223 Professional for BusinessPhone User Guide - Manual (Page 116)

Accessories
BusinessPhone — Dialog 4223 Professional / Dialog 3213 116
Headset - Dialog 3213
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
h
Press the Headset key to activate/deactivate (optional).
See section “
Description ” on page 6. All calls can be handled via
the headset.
Answer calls
Line 1
} h
Press the flashing Line key to answer.
X
Press to terminate a Headset call.
Make calls z
Enter the number.
X
Press to terminate the call.
Headset to handset u
Lift the handset.
Handset to headset
Headset
h
Press the Headset key (optional).