Vivotek NR9682-v2 64-Channel NVR (No HDD) - Manual (Page 71)

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User's Manual - 71
Two Way Audio
If your cameras support the Two Way Audio feature and the microphone and audio output to
an amplified speakers have been connected, you can right-click on the camera to display the
Broadcast function. Click on the Microphone icon in the middle to start speaking. Click again to
stop the Two Way Audio.
Note that the Broadcast option only appears when you select a camera that supports the Two
Way Audio feature. Currently the VAST2 software supports 1 to 1 broadcast.
Select the checkboxes to determine what kind of text overlay will display on view cells. Note that
you can place the overlay either on top or at the lower screen. Simply click and drag an overlay
item to a preferred location. When done, click the Apply button.
You can apply your current configuration to all view cells by selecting the Apply to all view cells
checkbox. Note that you can also display the VCA rules and areas on screen.