class VoiceXmlDocument extends XmlDocument implements Serializable {

    public VoiceXmlDocument()
            throws ParserConfigurationException {
        super();
        final Vxml vxml = getVxml();
        vxml.addDefaultAttributes();
    }

    public  VoiceXmlDocument();
    public  VoiceXmlDocument(final InputSource source);
    public  VoiceXmlDocument(final Document doc);

}