Use the response group usage report.  You'll of course need the monitoring role deployed and the SQL Server reports deployed.  If you open this report it will tell you how many calls were received/answered etc.  You can drill down into the received calls to see which workflow received the calls, and you can click answered to see which agent answered the call.

assuming you have a fully functional response group...  Is there a way to get information on how many calls were made to a particular route of the response group?

Hi, thanks for the answer but i need something different:

Assuming i've a response group called IVRnew with this possible choise:

1 - something1
2 - something2
3 - something3

In the response group report i just see how much call were made to IVRnew, but i need to see how much people made a call to the (1) of the IVRnew.

Don't know if you understand.

Thanks.

Yeah, that will then be more difficult as the reports show workflows not queues or groups.

You can attempt to hack up your own report, but it might be easier to replace the IVR with speech enabled automated attendants that can route traffic to three different workflows that you can get metrics on in the native reports.

Ok, thanks for the answer.

I've tried to build my own report but i don't know where i can find this information.
I've fully access to the DIRSYNC\MONITORING - LcsCDR DataBase but i can't find this things.

(i can acces to the rgsconfig database too)

http://technet.microsoft.com/en-us/library/gg398084.aspx

It's a hunt, I can't say exactly where in there you'd find it, and I think the queue may not even be referenced, only the end user who answered the call.  So if the same user is in multiple queues for different IVR answers, you may have a hard time.   That's why I'd suggest that by going with an attendant and having different workflows may save you trouble.