FreeRadius Features

[Mohammad Flaifel]

Dears, 

I asked this question before but unfortunately I didn't get the answer yet,
I hope this is not a negative sign :)
Are the following features available in FreeRadius:
- Change of Authorization while the subscriber's PPP session is still
connected.
- Radius initiated disconnect: Disconnect users based on download volume
limitation

Appreciate you answer.
Flaifel