Yealink VC400 Administrator's Manual page 281

To diagnose the camera via the remote control:
Select Menu->Diagnose menu.
1.
Select Camera Diagnose, and then press
2.
Press navigation keys to adjust the camera position.
3.
Press or to adjust the focus.
4.
If the camera can move and zoom normally, it means that the camera works properly.
Press the Back soft key to stop camera diagnose.
5.
To diagnose network via the remote control:
Select Menu->Diagnose menu.
1.
Select Ping, and then press
2.
Enter IP address (for example, the IP address of the far site).
3.
Press Start, and then press
4.
The display device displays the network diagnose information.
Press the Back soft key to return to the Diagnose menu.
5.
It measures the round-trip time from transmission to reception and reports errors and
packet loss. The results of the test include a statistical summary of the response packets
received, including the minimum, maximum, and the mean round-trip times.
Trace Route:
Select Menu->Diagnose menu.
1.
Select Trace Route, and then press
2.
Enter IP address (for example, the IP address of the far site).
3.
Press Start, and then press
4.
The display device displays the network diagnose information.
Press the Back soft key to return to the Diagnose menu.
5.
If the test is successful, the VC400/VC120 system lists the hops between the system and
the IP address you entered. You can check whether congestion happens via the time cost
between hops.
To diagnose network via web user interface:
Click on Network ->Diagnose.
1.
Select the desired diagnostic method from the pull-down list of Command.
2.
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Troubleshooting
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