What's a good open source VoiceXML implementation?

Question

I am trying to find out if it's possible to build a complete IVR application by cobbling together parts from open source projects. Is anyone using a non-commercial VoiceXML implementation to build speech-enabled systems?

Answer 1

I've tried JVoiceXML in the past and had some luck with it.

http://jvoicexml.sourceforge.net/

It's java of course, but that wasn't a problem for my situation.