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TANDBERG
FieldView Administrator Guide
D14098.02 June 2008
by enabling only the RF channels that are in use at the site in the RF
channels configuration screen. The TANDBERG FieldView Device determines
which access points are available for roaming by sampling each channel.
This process takes time and requires the TANDBERG FieldView Device to
stop sending and receiving the media stream. The time lost during this
process can be reduced by scanning only the channels in use at the site.
See the section
Network>Radio
for information on how to configure this
feature.
Site Survey
Regardless of whether the wireless network at the site is new or existing,
the best assurance that it will be suitable for high-quality voice and video
streaming is to perform a site survey. This involves evaluating the coverage
area of factors such as:
Examining existing WLAN usage
•
Signal quality
•
Interference and noise
•
Channel assignment
•
Device location
•
Site topography
•
The goal is to ensure mobile operation without significant loss of quality over
the desired coverage area mainly by providing:
Adequate bandwidth
•
Data transmission reliability
•
Low latency/delay time
•
It is best to use an experienced WLAN site survey contractor for complex
installations. This is usually available as a service from enterprise WLAN
infrastructure suppliers.
Wireless Security
Wireless networks should be operated with appropriate security measures.
Consult your site administrator for requirements and necessary access key.
See the section
Wireless Network Properties
for information on configuring the
TANDBERG FieldView Device to support specific security modes.
Wireless Troubleshoot
i
ng
Please refer to chapter
9. Troubleshooting
and your site’s WLAN infrastructure
troubleshooting guide for troubleshooting assistance.
Firewalls and Network Address Translation
Firewalls and Network Address Translation (NAT) can conflict with successful
operation of the FieldView. While in some cases it may be possible to open the
firewall or NAT to directly allow FieldView traffic, this may be cumbersome and
is not recommended due to the security risks.
Instead, use a secure SIP firewall traversal system. Consult TANDBERG for
assistance and recommendations with firewall and Network Address Translation
(NAT) traversal issues.
Chapter 3
