Has someone more recent experience with Future9, it seems they use voietrading fees so they are good although has per minute billing. How is call quality on their 3 routes?

As you say they seem to use voicetrading. Biggest advantage was that at future nine you could pay just 200 euro (i believe) and voicetrading used to be minimum 500 but 2 weeks ago I updated my account and minimum was reduced to 200 euro

I normally use the normal and premium route as the difference in price is not really that big. Normal route seems ok. Using the premioum route i was able to call um lichtenstein (before the shutdown) and lowcost and normal route could not reacht um +423,
so there does seem to be a difference in these routes.

future nine can be charged with small amounts of $ - i added only 10$ at the beginning to check.
They seem to use various providers - not only voicetrading. There are at least 20 different trunks where i can see that my calls are terminated. Quality was always good over the premium route, on grey it was a bit difficult to some destinations - but thats exactly what they write on their website as well...

Is their ANI callback works ok? Do you get charged for the call to trigger the callback?

That may depend more on the network you are calling from. The unanswered call should be free, but (with other callbacks) I've seen a 2 second call charged from some places, which is a bit boring with per minute billing.

So I'd suggest to make a trial call before committing oneself, and plan to have other options available

i just tried that.
Its a bit tricky to hang up at the right time. There is no signalling at all but after approx 10 seconds the system takes the call. So you have to dial, wait 5 sec and hangup before the system picks up.
The callback leg was billed right after picking up, the called leg only for the time of the actual phonecall.

Chris