This report presents the findings of the evaluation carried out by ANACOM, from 2 to 11 March 2011, on the quality of voice and video mobile services and of the coverage of the GSM and WCDMA (UMTS) networks provided by Optimus, TMN and Vodafone Portugal on the urban rail network of Porto (specifically along the Aveiro, Braga, Caíde and Guimarães lines). The evaluation was based on the analysis of technical parameters which reflect perception of quality from a consumer’s point of view.