Analyse the call and data volumes included in each of this selection of offers. Choose unlimited calls in Luxembourg and Europe and at least 20 GB of mobile data in Europe (if you travel from time to time). 2. Compare the monthly prices of the packages, taking into account the promotions and special offers offered 3. Compare the commitment periods of the packages: some operators offer packages without commitment, others impose a 12 or 24 month commitment in their contracts. 4. Make your choice and subscribe to the offer directly on the mobile offer website.