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119Dialog 4223 Professional/Dialog 4225 Vision
Accessories
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.