Dahua VTH2611L-WP, Руководство пользователя

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Alarm ring
Tap text box to select rings, and tap and to set the volume.
3.6.1.4 Other Ring Settings
Set VTO ring time, VTH ring time, MIC volume, talk volume and ring mute setting.
VTO Ring Time
and
VTH Ring Time
of extension VTH are synchronized with main VTH, and cannot
be set.
Tap Setting .
Select
Ring > Other
.
Other settings
Tap and to set the time or volume. Tap to enable
Ring Mute
, and the
icon becomes .