Security Camera King NVR-ELC-16 User Manual page 106

Please refer to the following sheet for detailed information.
Parameter
CAM 1 to CAM
16
Open all /close
all
Start Dialogue
Figure 7-5 Monitor Channel Menu Tree
Function
channel 1 to channel 16
Click this button to open all video channels.
Once all video channels are open, it becomes close all button.
You can click this button to enable audio talk. Click 【▼】 to
select bidirectional talk mode. There are four options: DEFAULT，
G711a，G711u and PCM.
Please note, the audio input port from the device to the client-end
is using the first channel audio input port. During the bidirectional
talk process, system will not encode the audio data from the
1-channel.
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