Polycom VSX 3000 Administrator's Manual page 175

Symptom
Edges of picture are cut off
when viewing graphics.
Call participants cannot see
or hear what is being
played on the VCR or DVD.
Picture freezes frequently
during an IP call.
Picture freezes frequently
during an ISDN call.
Picture is slow or jerky.
Problem
Graphics from the far site
are displayed on an NTSC
monitor.
The laptop's display
resolution or refresh rate
does not match the settings
for the Visual Concert VSX.
The VCR or DVD is not
selected.
The VCR or DVD is not set
up correctly.
There is too much traffic on
the LAN. Check the error
count on the Call Statistics
screen.
Too many network line
transmission errors. Check
the error count on the
Diagnostics > Call
Statistics screen to verify
this.
Network interface cable or
cables may be bad.
The system is receiving
video that includes a large
amount of motion.
Too many network line
transmission errors. Check
the error count on the
Diagnostics > Call
Statistics screen to verify
this.
Only one 64 Kbps channel
is connecting in your call.
Diagnostics and General Troubleshooting
Corrective action
Use a VGA monitor to display graphics.
Be sure the laptop's refresh rate is set to 60 Hz, and
that the laptop and the Visual Concert VSX use the
same display resolution.
Select the VCR (Camera 3):
Press Camera, then press 3.
Check that the VCR or DVD is connected according
to the instructions in the section
VCR/DVDs on page 2-26.
Refer to the manufacturer's instructions to set up the
VCR or DVD correctly.
Go to Admin Settings > Network > IP > Quality of
Service and enable dynamic bandwidth.
Try the call again.
Replace the cable or cables.
A background with less motion provides a better,
smoother video picture.
Try the call again, possibly at a lower network speed.
Check the ISDN number of the far site. Ask the far
site to call your site.
Connecting
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