AASTRA 4422 IP Office (SIP) for MX-ONE User Guide - Manual (Page 87)

87 Dialog 4422 IP Office
Accessories
Headset Preset
By default the phone is set to Loudspeaker Preset mode, so that
calls are connected to the loudspeaker when you answer or make
calls by pressing a Line key. Also when you dial the number without
lifting the handset, the call is automatically connected to the
loudspeaker.
When you use a headset for your telephone, you can change the
setting to Headset Preset mode to get calls connected to the
headset instead. In Headset Preset mode you can make headset
calls by pressing digits directly (direct dialing). You can also answer
headset calls by pressing a Line key.
Notes:
Independent the type of preset setting, when you lift the
handset the call is always connected to the handset.
Activation and deactivation of Headset Preset can only be
done when the phone is in idle mode.
To activate Headset Preset:
Í
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard.
To cancel Headset Preset:
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard.
Headset volume
During a call, use the Volume keys to change the volume of the
headset. ì
Press to change the volume.
The set headset volume level is stored.
For those with impaired hearing, the headset hearing volume level
can be further amplified, use the same procedure as described in
section “ Handset and loudspeaker volume ” on page 80.