*Roaming internationally shouldn't be expensive. We offer great rates on both outgoing and incoming calls (except in the Netherlands) when you're abroad.
Go into Settings and choose Phone > SIM Application
Locate the SIM Tool Kit/Vectone Services icon in your apps tray
Select Manual and then Overseas to enable roaming. Select In France to disable roaming
(You may need to confirm.)
The service will appear within 20-40 seconds. Once you have the signal, you can start using the roaming services.