Euro question - BMW online abroad

Hello,
Does anyone know what functions from BMW online work abroad?

I get the message "Current mobile communication network is not supported by BMW Online."

The car is originally italian, now in switzerland and I am using a swiss phone for bluetooth.

Also does "BMW online" use the Simcard in the card or the phone connection? Will it only work when I go back to Italy?

There are the related specs from the car F25 2.0D 2011:

S609A Navigation system Professional

S612A BMW Assist

S615A Expanded BMW Online Information

S616A BMW Online

S633A Business Preparation, mobile phone, Business

S698A Area-Code 2 for DVD

S6AAA BMW TeleServices

S6ABA Control for Teleservices

S6NFA Music interface for Smartphone

S6NLA Connection Bluetooth + USB devices incl.

S6UHA Traffic Information

S6VCA Control for Combox

S855A Language version Italian

Thank you,
Starmir

Euro question - BMW online abroad