AASTRA 4222 Office for MX-ONE (TSE) User Guide EN User Manual
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Dialog 4220 Lite/Dialog 4222 Office
Accessories
To activate Headset Preset:
Í
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard, and the headset key
lamp flashes for a few seconds.
To cancel Headset Preset:
Â
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard, and the loudspeaker key
lamp flashes for a few seconds.
To check the current preset setting:
Ô
Line 1
Press.
Either the Loudspeaker or Headset key lamp is turned on, indicating the
current preset setting.
í
Press.
Headset volume
Use the Volume keys to change the volume of the headset.
ì
Press to change the volume.
On the Dialog 4222 Office phone, a volume symbol is shown for a few
seconds (replacing your extension number). The set headset volume
level is stored.
To adjust the volume for the loudspeaker of the phone during Group
Listening:
П
Н
Press.
ì
Press to change the volume.
On the Dialog 4222 Office phone, a volume symbol is shown for a few
seconds (replacing your extension number). The loudspeaker volume
level is stored.
Н В
Press.
For those with impaired hearing, the headset hearing volume level can
be futher amplified, use the same procedure as in section “