What is roaming?

Roaming allows you to use your mobile plan abroad at the same rates as in your country.

If you are abroad, you are no longer communicating from your Orange mobile network, but rather you are communicating via a foreign mobile network.

This change of mobile network is done automatically and is possible thanks to an agreement called "roaming agreement" between the different countries of the European Union. 

Orange Luxembourg also includes Switzerland and the UK in the Europe zone.