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The property element is used to specify certain platform behaviors, such as speech recognition parameters. The defaults.xml file specifies the following default properties and values:
<property name='xml:lang' value='en-US'/>
<property name='confidencelevel' value='0.5'/>
<property name='sensitivity' value='0.5'/>
<property name='speedvsaccuracy' value='0.5'/>
<property name='termtimeout' value='0s'/>
<property name='termchar' value='#'/>
<property name='bargein' value='true'/>
<property name='caching' value='fast'/>
<property name='audiofetchhint' value='prefetch'/>
<property name='documentfetchhint' value='safe'/>
<property name='grammarfetchhint' value='prefetch'/>
<property name='objectfetchhint' value='prefetch'/>
<property name='scriptfetchhint' value='prefetch'/>
<property name='inputmodes' value='dtmf voice'/>
See the VoiceXML specification, in the VoiceXML section of the W3C Web site, for information on the purpose of each of these properties and on how the values affect the system.
To change these properties to meet the requirements of your VoiceXML application, edit the defaults.xml file or specify the property values in your application documents using the property element.
Any changes you make to the defaults.xml file are not effective until the voice system is stopped (using the stop_vs command) and started again (using the start_vs command). For more information on how to use these commands, see start_vs command and stop_vs command.
