Error-Information - Snom 4S Administrator's Manual

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Error-Information

Error-Informationen is not directly part of the routing. This
feature merely provides the user agent client with additional information
if a request fails. This is typically a SIP URL of a media server account
which reads out the error aloud (for example, "The number you have
dialled is temporarily not available").
Should something go wrong, a telephone system usually generates
error reports. In many cases the exact error messages are visible at the
protocol level, but the user does not get more than a busy tone. SIP
offers improved error information to users. The error information may
be on a web page (e.g. http://www.company.com/error-explanations/
err_404.htm), but it may also be a SIP URL. While most VoIP phones can
not display http content, they can place a call to an announcement server
that reads out the error message. This means that the system is much
smarter than traditional telephone systems. You can even customize the
announcements according to your special requirements.
You can simply set up the error information redirection by
selecting the approriate error type and enter the destination that should
be put into the response.
If you dont define a destination for a specific error code, the proxy
will take the generic destination. This generic destination may include the
pattern "{code}" which will be replaced with the error-code (e.g. "404").
If your media server unerstands additional parameters in the number,
then you can set up one error explanation account for all codes.
If you leave the generic destination empty and no specific code
has been set up, no error-information will be generated.
82 • Routing
4 S P / R
R O X Y E G I S T R A R
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