Aastra Dialog 4223 Dialog 4223 Professional/4225 Vision for MX-ONE (TSE), user - Page 113
Headset volume, Press and hold for at least 4 seconds., Press to change the volume., Press.
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Accessories To activate Headset Preset: Í 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 PhoneSet menu. Â 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 PhoneSet menu. 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. ÏÍ ì ÍÂ 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 99. Dialog 4223 Professional/Dialog 4225 Vision 113
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