IC Realtime Combo Series: 8 Channel DVR with built-in 19 LCD monitor User Manual
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Refresh 
You can use button to refresh camera list. 
 
Start Dialogue 
You can click this button to enable audio talk. Click 【▼】 to select bidirectional talk mode. 
There are two options: DEFAULT/G711a. 
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. 
Local Play 
The Web can playback the saved (Extension name is dav) files in the PC-end. 
Click local play button, system pops up the following interface for you to select local play file. See 
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Figure 7-10.
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Figure 7-10
 
7.2.2 PTZ 
Before PTZ operation, please make sure you have properly set PTZ protocol. (Please refer to 
chapter 7.3.2 Setting-> Pan/Tilt/Zoom). 
Click PTZ button, the interface is shown as in 
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Figure 7-11
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.