version

Version of the VoiceXML used in the document.

vxmlns

Designated name space of the VoiceXML defined usually to behttp://www.w3.org/2001/vxml.

xml:lang

Language identifier for this document.

xml:base

Base URI of this document.

application

Refers to the URI of the root document of this document’s application.

parent

None.

children

catch, error, form, help, link, meta, menu, noinput, nomatch, property, script, var.