AASTRA DT4x2 for MD Evolution User Guide EN - Manual (Page 126)

DT4X2 Adjustments
MD Evolution – Cordless DT412 / DT422 / DT432 126
To enter the Settings menu
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Press the Menu key.
The last used tab is marked. à
or
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Select Settings tab
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Press to enter Settings .
A list with all available settings is shown. â
or
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Scroll up or down until you find the required setting.
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Press to leave the Settings menu.
Volume Control
Use the volume keys to adjust the volume in the ear piece. See
section “ DT4X2 General Description ” on page 20 for the location of
volume controls.
To turn the microphone on or off during a call, See section “
Mute
Microphone ” on page 50
Loudspeaker volume
When you are making a call, the volume keys affect the
loudspeaker volume. This is useful when e.g. you enter a
machinery room.
Press the volume controls to adjust the loudspeaker volume
during a call.
The volume level is set and maintained until you adjust the volume
again.