No, I didn't try calling them. I don't want the paid version.
Their open-source web site is
https://www.voiceroute.org which only shows a download of 2.0. Where are you finding 4.2.0?
If you go to the .org website, you'll find some links that aren't working. If you visit the
forum you'll see where I got the information about the support.
Please let me know if you have more information, as I really would like to play with the product.
