[Zappa Fan]

...off of VOIP without using hardware? The IVR server would intercept VOIP calls and handle them. From what I can tell, there would be no need for hardware since it will all be done internally. The server could contain the code to convert the VOIP signal, if that is even necessary. I have been doing searches on this but I thought I would throw it out here as well.

[Marcus G]

is there intelligent voice recognition that's open source? Well either way it shouldn't be that complicated. If you're using an open source os and you didn't want to mess with the programs you could just find a way to make dummy sound cards or terminals that would deal with new calls. Kinda kludging the two together through the os rather than natively through the program. If you want an elegant solution it would probably have to be programmed...