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Chapter 12
Troubleshooting
Common problems
Issue
Priority alerts are not being
displayed on phones as soon as
they are sent
Audio notifications sound
choppy
"Host not found" is displayed on
the phone's screen
Graphics are distorted on the
phone's display
This section discusses common problems and possible resolutions.
Description/Resolution
Priority alerts typically take about 5 seconds to propagate
to phones. This procedure may take longer to a particular
phone if Broadcast Server had encountered errors with
that phone in the last 2 minutes.
Broadcast Server transmits audio in ITU G.711 ULaw
format in 30ms frames. Verify that your network devices
are optimized for this framing size or contact Support for
assistance in changing these parameters.
The phone encountered an error while retrieving content
from the Application Gateway.
Verify that the Application Gateway and Broadcast Server
are operational and that the phone has a network access
pathway to the Application Gateway.
Graphics converted to a format that can be displayed on IP
phones may suffer degradation depending on the size,
aspect ratio, and color-depth of the picture. For best
results use images with a resolution and color model that
is appropriate for the IP phone screen.
Broadcast Server User Guide
55
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