[Guerralenta]

Hello, excuse my bad english, im from venezuela, and work in diferent countries, y have a rhod500 gsm/cdma, i just work with gsm, chage the sim and thats it, but since some time ago i notice that the phone recieve sms and emails, but when in sleep mode the calls dont enter, the green light turn orange when a call is being received, but nothing comes on the screen, no ringing, nothing, for the phone the call never existed, it dont even show it in the missing calls, just dont enter... i call and here the phone ringing... but nothing.. dont show nothing and cant answe...