Nortel Networks Broadcast Server warranty Troubleshooting, Common problems, Chapter

Chapter 12

Troubleshooting

This section discusses common problems and possible resolutions.

Common problems

Issue	Description/Resolution
Priority alerts are not being	Priority alerts typically take about 5 seconds to propagate
displayed on phones as soon as	to phones. This procedure may take longer to a particular
they are sent	phone if Broadcast Server had encountered errors with
	that phone in the last 2 minutes.
Audio notifications sound	Broadcast Server transmits audio in ITU G.711 ULaw
choppy	format in 30ms frames. Verify that your network devices
	are optimized for this framing size or contact Support for
	assistance in changing these parameters.
“Host not found” is displayed on	The phone encountered an error while retrieving content
the phone’s screen	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 are distorted on the	Graphics converted to a format that can be displayed on IP
phone’s display	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.

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