I am testing Boxbilling now, looks like it works, but system has quite a lot of dead links and documentation looks like not completed.
All links related to extensions are dead, localizations are dead, it gives filling that system is out of production.
Google didn't clarify anything, I found few extensions but they are at least one year old.
In general BB works quite well (in test), it simple and has all needed features.
Who knows, what is the current status of BB is it any production going on and what is going on with extensions and localizations?
Who has experience with this billing?
Would be good to share here experience and ideas.