I am having problems with Safari. It works fine when I'm connected through wifi. But when I'm not around any wifi connections and I try to use safari, I get a message saying "Safari can't open this page because it can't find the server." Then I get another message saying "Could not activate EDGE: You are not subscribed to EDGE." Do unlocked iPhones need to have wifi to use safari?
It is an unlocked 1.1.3 OTB and using T-Mo.