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| Selects a submenu or scrolls through lists  Up Down |
Selects a menu Left Right |
 Confirms selection and hides display messages |
Adjusts the volume Increases Reduces |
Telephone operation Makes or accepts a call Rejects or ends a call |
 Mute |
 Switches on LINGUATRONIC |
 Back, switches off voice control and hides display messages/ selects the standard display |
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