GSM Mobile Networks Quality of Service Survey Listen with ReadSpeaker Receive news from ANACOM without having to connect to the website Print Veja esta página em Português Share: Email Published on 07.02.2005 Information on: October and December 2004 and February 2005 Full version in PDF format (PDF 862 KB) PDF version (subdivided) https://www.anacom.pt/render.jsp?categoryId=147024 Executive summary (545 Kb) Technical aspects of the study (201 Kb) Aggregate results (388 Kb)