Foscam FI9818W User Manual page 54

③ Press the left mouse and drag it on the time boxes, you can select the serial area.
Step 07: Click Save button to take effect.
When the motion has been detected during the detection time in the detection area, the camera will
alarm and adopt the corresponding alarm indicators.
NOTE: You must set the detection area and detection schedule, or else there is no alarm anywhere
and anytime.
4.6.2 Sound alarm
Some models support Sound alarm.
When the ambient sound over a certain decibel ,the sound alarm will be triggered.
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