my blackberry doesn't always receive calls. my friend called me 3 times and texted me but i didnt get any of these messages until i dialed out of my phone myself. this isn't the first time it's happened and im not sure what's wrong. a lot of threads say their problem lies with cingular or whatever, but i have verizon so i don't know if it's my carrier's fault or my phones. does anyone know what i can do to fix this?? thanx.