Im receiving calls from an Unknown number on my Sony ericcson phone?

Question

Im receiving calls from an Unknown number on my Sony ericcson phone?
When I pick up the phone its some person whispering cuss words. Its usually in about am or am. Any way to figure put the phone number?

Answer

there a feature in your settings that only let unblocked s to call your phone.in your voice mail settings.If a phone is unblocked they have to press to call you.