Because Audium produces syntactically correct VoiceXML and the elements themselves will throw errors if they are set up in such a way that would cause bad VoiceXML to be produced, there are few situations where the browser would e-mail the maintainer due to something they did wrong in Audium.

The one example of I'd say 90% of the e-mails you would get would be a warning message if you referred to an audio file that did not exist. If you provided a TTS backup, the call would have no problems and encounter no errors, but the browser may choose to e-mail you the warning so you don't have people hearing TTS.

Elam