Polycom HDX Series Administrator's Manual page 141

Symptom
Graphics are displayed on
Monitor 1 at all sites even if
a different monitor has
been specified for content.
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
or becomes blocky during
an IP call.
Picture freezes frequently
during an ISDN call.
Problem
At least one site does not
have dual-stream,
People+Content, or H.239
capability.
This can occur in calls to
older systems that do not
support this feature.
Bridges, which support this
feature, must have the
conference configured for
this feature.
Graphics from the far site
are displayed on an NTSC
monitor.
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.
The network is
experiencing packet loss.
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.
Corrective action
ViewStation™ EX/FX owners can upgrade to the
latest version of software.
Configure the bridge for this feature.
Use a VGA monitor to display graphics.
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 5-1.
Refer to the manufacturer's instructions to set up the
VCR or DVD correctly.
Go to System > Admin Settings > Network > IP >
Quality of Service and enable dynamic bandwidth.
Go to System > Admin Settings > Network > IP >
Quality of Service and specify a smaller value for
Maximum Transmission Unit Size.
Try the call again.
Replace the cable or cables.
Troubleshooting
Connecting
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