The document reports on a perception study conducted in June 2009 that examined the most important factors for choosing a GSM provider according to survey respondents. The three most important factors were wide network coverage at 80%, caring about subscribers at 59%, and good advertisements and promotions at 42%. The document also lists the top GSM providers for each of the factors examined, including good connection quality, innovative products and services, good advertisements, caring about subscribers, wide network coverage, and the best overall provider for an individual respondent.