Accessories
Dialog 4223 Professional/Dialog 4225 Vision112
Headset with Group Listening (loudspeaking)
 Press to toggle between headset with or without Group Listening.
When the Loudspeaker key lamp is on, the Group Listening is active.
From headset to handsfree
 Press.
The Loudspeaker key lamp is turned on.
ÏÍ
Press.
From handsfree to headset
Í
Press.
The Headset key lamp is turned on.
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.
Also handsfree and loudspeaking work as usual, i.e. when the
Loudspeaker key is pressed, the call is temporarily connected to
the loudspeaker.
Activation and deactivation of Headset Preset can only be done
when the telephone is in idle mode.
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