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Bolero User Manual A20
2.4 Features in Detail
2.4.1 Speaker
In the menu 'Audio > Speaker' is defined, if the audio signal is routed to the internal speaker or to an attached headset.
Connecting a headset will switch the speaker off. Removing a headset won't change the current setting.
The following table shows the usage of the internal and headset microphone:
In the speaker mode the echo cancellation is always active.
2.4.2 Brightness Mode
The menu 'Brightness > Brightness-Mode' allows switching between different predefined and one user specified display
settings. Under Brightness > Custom Settings the single parameters can be modified.
The predefined modes have following values:
normal display brightness
dimmed display brightness
inactivity timer to dim the display
inactivity timer to turn off the display
inactivity timer to dim the keys
inactivity timer to turn off the keys
dimmed Call LED brightness
dimmed Status LED brightness