Aastra Dialog 4222 Office User Manual page 102

Accessories
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Headset
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Headset
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Headset - Dialog 3211 & Dialog 3212
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
Press the Headset key to activate/deactivate (optional).
See section
the headset.
Answer calls
Press the flashing Line key to answer.
Press to terminate a Headset call.
z
Make calls
Enter the desired number.
Press to terminate the call.
Headset to handset
Lift the handset.
Handset to headset
Press the Headset key (optional).
BusinessPhone – Dialog 4222 Office / Dialog 3211 & 3212
"Description" on page 7. All calls can be handled via