ill have 3 bars of 3g, but sometimes it keeps saying call retry then eventually it works. other times people say they called me and they get a message saying " the number u reached can't be completed or some BS of automated. finally 2 times now i have called someone in the span of 2 months this happened. it rings, but its a weird scratchy fuzzy ringing, so i hang up and call again and the ringing is a normal ring. anyone know what could cause this? is the 3g just not good enough even though with 2 bars or 3 it still said call retry.