GSM Mobile Networks - Quality of Service Survey - Long Calls (May 2005) Listen with ReadSpeaker Receive news from ANACOM without having to connect to the website Print Veja esta página em Português Share: Email Published on 07.05.2005 GSM Mobile Networks - Quality of Service Survey - Long Calls (PDF 3244 KB) GSM Mobile Networks - Quality of Service Survey - Long Calls (HTML version) https://www.anacom.pt/render.jsp?categoryId=168362 Executive summary Technical aspects Results