My Gusto 3 stopped ringing when I get an incoming call. I went to the ringtones setup and when Iselect any ringtone and push the button to play it I get no sound at all. All regular system sounds seem to work fine. The airplane mode is off, and I went through sound setup at least five times, but still I get no ringtone, and when I check the phone I see I have missed calls. What is going on?
