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TE20 Videoconferencing Endpoint
Administrator Guide
Problem
of any remote
site.
The video of
your site is in
black and white
or flickers in
black and white.
While the
endpoint is in use
during a
conference, the
video of a remote
site is not clear.
For example,
there are
artifacts, frozen
images, or
discontinuity in
the video output.
While the
endpoint is in use
during a
Issue 01 (2016-09-01)
Possible Cause
If the remote video is
displayed as a blue
screen, the remote site is
blocking its video by
sending a blue screen.
The video output port is
set to display the video of
your site.
Local video is turned off
by a remote site.
It is a voice-only
conference.
The mode adopted by the
video output port is set
incorrectly.
Faults occur in the local
video module.
The remote camera is set
to focus on a close or
distant scene. When the
remote camera is not set
to automatic focus and
the scene captured by a
remote camera changes,
the captured video
becomes unclear.
Only low video
bandwidth is available for
your site because the
network is busy.
The quality of a network
connection device, such
as an optical fiber
transceiver, is poor. As a
result, certain data is lost
during transmission.
Packet loss occurs on the
network.
Ask the remote site
administrator to perform
a local video loopback
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Solution
Contact the remote site administrator to
resolve this problem.
Set the video output port to display the
video of a remote site.
Ask the administrator of the remote site to
turn on the local video.
-
Replace the cable if necessary.
Perform a local video loopback test. If the
video quality is poor, faults occur in the
local video module. In this case, send the
endpoint to the local distributor for
maintenance.
Set the remote camera to automatic focus.
Do not initiate conferences during network
busy hours.
Replace the related network connection
device.
Contact the network administrator.
Ask the administrator of the remote site to
disconnect from the conference, set the
video frame rate to a smaller value, and
11 Troubleshooting
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