With voice xml 2.0 there are some changes made to the voice xml grammar. A new tag called <log> is introduced which might help you in debugging. Elements like <dtmf>, <emp>, <div>, <pros>, and <savas> have become obsolete.

Some of the elements like 'lang' has been modified to something like 'xml:lang'. you can refer to the documentation on voice xml 2.0 for the changes that have taken place in this version.

If you know the basics of voice xml grammar then you can easily work with this to create a powerful interactive voice response system. Basically these are xml applications. You have to know the basics of xml and how to use the tags available in voice xml.

For example the <prompt> tag would prompt some audio dialog to the user to make them respond to it. Any text message within the <audio> tag is converted to speech by the text-to-speech engine and given to the user.

The <form> and the <menu> tags are used to present some audio to the user and to take them through difference choices available for them once they enter the voice xml application.

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