JRC’s mobile app netBravo was used to carry out the measurements and analysis of data. Download speed, upload speed and latency were measured for all roaming tests and results were analysed. The study found mixed results on the quality of service in roaming. Customers of 21 mobile networks from 11 countries at least once had worse quality of service in roaming compared to at home even when technical conditions were available for better quality. Such cases accounted for 25% of all roaming instances in the tests.
This publication is a Technical report by the Joint Research Centre (JRC), the European Commission’s science and knowledge service. It aims to provide evidence-based scientific support to the European policymaking process. The scientific output expressed does not imply a policy position of the European Commission.