Axis 2N LTE Verso, Руководство по настройке

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Key beep volume – set the key beep volume. The volume values are relative
against the set master volume.
Warning tone volume – set the volume of warning and signalling tones described
in the
section. The volume values are relative Signalling of Operational Statuses
against the set master volume.
Switch activation tone volume – set the volume of the switch activation tone.
The volume values are relative against the set master volume.
User sounds vol ume – set the volume of the user sounds to be played. The
volume values are relative against the set master volume.
Default audio input – set the default audio input (microphone, line input or audio
module input) to be used for phone calls and audio streaming.
– set the microphone input gain. Microphone input gain
Line input gain – set the line input gain independently of the microphone gain
value.
Acoustic feedback filter – set automatic suppression of acoustic feedback
(typically whistling) between the intercom speaker and phone handset if located
in close proximity to the intercom. This mode is disabled by default.