Huawei V100R001 User Manual page 104

HUAWEI TE30 Videoconferencing Endpoint
User Guide
Problem
local video but not
the remote video.
The local video is in
black and white or
blinks in black and
white.
While the TE30 is
in a conference, the
remote video is not
clear. For example,
there is artifacts,
frozen image, or
discontinuity in the
video output.
Issue 01 (2013-03-27)
Possible Cause
value of Video
bandwidth[frame rate] is 0,
no video is sent from the
remote site.
If the remote video is
displayed as a blue screen, the
remote site hides its video by
sending a blue screen.
The video output port is set to
display the local video.
The mode of the video output
port is set incorrectly.
Faults exist on the local video
module: Perform a local video
loopback test. If the video
quality is poor, faults exist on
the local video module.
The remote camera is set to
focus on a near or far scene:
When the remote camera is
not set to focus automatically
and the scene captured by a
remote camera is changed, the
captured video is of poor
quality.
When the conference rate is
lower than 256 kbit/s, the
audio protocol is set
incorrectly. For example, you
can access the Status screen.
If the conference rate is 256
kbit/s and the audio bandwidth
is 64 kbit/s, the video
bandwidth will be only 196
kbit/s. In this case, the video
quality is poor.
Low video bandwidth is
available for the local site
because the network is busy.
Certain data is lost during
transmission, because the
quality of a network
connection device such as an
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12 Troubleshooting
Solution
administrator to solve this
problem.
Contact the remote site
administrator to solve this
problem.
Set the video output port to
display the remote video.

Ensure that the mode of the
video output port and the cable
in use match each other.

Check that the cable is
connected correctly. Replace
the cable if necessary.
Send the TE30 to the local
distributor for maintenance.
Set the remote camera to focus
automatically.
If the conference rate is lower than
256 kbit/s, set the audio protocol
to G.728 to reduce the bandwidth
used for audio transmission.
Do not initiate conferences in busy
hours of the network.
Replace the relevant network
connection device.
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