Quicksupport & Intranet (without internet)

[retegraf]

Hi,
we are 3 technicians and we support our customers that uses intranet without an internet connection. We are testing TW Host with ip lan connection and it works fine, but is it possibile to customize TW Quicksupport to work only into the intranet? We need this like "Vnc One Click" : customer launch the quicksupport for technician #1 and tw connection is established.
All the ip address are static.
Please help, thanks.