Ericsson Dialog 4223 Professional User Manual page 120

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120
To activate Headset Preset:
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard, and the Headset
Preset symbol is shown in the display.
Note: You can also activate Headset Preset, via the
menu.
PhoneSet
To cancel Headset Preset:
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard, and the Headset
Preset symbol is switched off in the display.
Note: You can also cancel Headset Preset, via the
menu.
PhoneSet
Headset volume
During a call, use the Volume keys to change the volume of the
headset.
Press to change the volume.
The set headset volume level is stored.
To adjust the volume for the loudspeaker of the phone during
Group Listening:
Press.
Press to change the volume.
The Loudspeaker volume level is stored.
Press.
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 105.
Dialog 4223 Professional/Dialog 4225 Vision