User Guide for the VC120 Video Conferencing
System
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If the local site is forced to use encryption, ensure that the far site enables encryption too.
Ensure that the far site supports the same call protocol as the local site.
Why does the system fail to call the far site via IP address?
Ensure that the network is connected correctly.
Ping the IP address of the far site. Contact your system administrator if it fails.
Camera Issues
How to adjust room lighting?
You can alter the environmental lighting and background colors of your environment to obtain
the best video quality. If light levels are too low you may consider adding artificial lighting.
Reflected light from pale walls often produces excellent results.
Avoid the following situations:
Direct sunlight on the display device, the background, or the camera lens which creates
harsh contrasts.
Colored lighting.
Why can’t I adjust the camera angle and focus?
You can adjust the camera when the system is idle or during a call. The camera cannot be
adjusted when the system is in the menu screen.
Ensure that the batteries in the remote control are in good working condition, and installed
correctly.
Aim the remote control at the sensor when you perform a task.
Ensure that no objects are obstructing the sensor on the front of the camera.
Ensure that the LED on the front of the camera flashes green when you use the remote
control to perform a task.
Ensure that what you are controlling is the local camera.
Reboot the system.
If the above suggestions cannot solve your problem, perhaps the remote control is broken.
You can contact your system administrator for help.
Why is the video quality bad?
Ensure that the display device has suitable resolution.
Check whether the packet has been lost. For more information on packet loss, refer to
on page
Contact your administrator to adjust the camera brightness and white balance.
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