How can I block a specific phone number from my cellular phone?

Answer 1

This is a helpful feature. Unfortunately not many mobile phones support this. the only phone brand I know which have this facility is "Erisccon" (Not Sony Ericsson). You can navigate through menu and select call block and enter the specific numbers you want to block. and the phone simply dosent accept those calls. the best thing is it also shows you how meny calls it rejected.

Answer 2

check out your menu on the phone and look for settings, select call barring and enter the number you want to block. it should work if your phone has this facility.