On mobile phones with dual sim card and the use of different mobile phone providers 

The petitioner calls for a prohibition to manufacturers and telephone companies to install software on mobile phones - capable of supporting the hardware for use of several mobile phone contracts - that eventually blocks cards of different providers. The petitioner sees in this limitation that some companies provoke, a clear abuse with the aim of enforcing disadvantageously higher tariffs for the EU consumer. Especially, as for the petitioner, in the border triangle Germany-France-Switzerland, users are more affected by such problems as they have several mobile phone contracts for the respective countries.