131
For the LAN mode, after you logged in, you can see the main window. See Figure 4-4.
Figure 4-4
This main window can be divided into the following sections.
Section 1: there are six function buttons: Live
（
chapter 4.3
, setup (chapter 4.8), info (Chapter 4.9),
playback (chapter 4.10), alarm (chapter 4.11), and logout (chapter 4.12).
Section 2: There are monitor channels successfully connected to the NVR.
Please refer to Figure 4-5 for main stream and extra stream switch information.
Figure 4-5
Section 3: Start Talk 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. See Figure 4-6.
After you enable the bidirectional talk, the Start talk button becomes End Talk button and it becomes
yellow. Please note, if 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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