[Voiceglue] Catching disconnects

[Doug Campbell]

> I must be mis-understanding you - how is my catch block not in the root
> document? It's a direct child of <vxml>.

A root document is what defines application scope.
Its declarations span multiple VXML pages that specify
the same root document.  You specify a root document
by including an "application" attribute to your <vxml>
tag, giving its URL.

For more details, see http://www.w3.org/TR/voicexml20/#dml1.3.3

Doug Campbell