This feature sets a low level limit in order to prevent beltpacks from being turned down so low they cannot be heard.
How this feature is used depends on your preferred working practice: it is possible to turn the volume on the beltpack down so low that all audio is inaudible. This can cause confusion among the unwary, although some users may want to turn the volume down completely on occasion.
Values: , -6, -12, -21, -70 OFF. Default value = -70 OFF. If OFF, audio can be turned down so low it cannot be heard at all.