I have an LG620G slider phone. I need to know if there is a way to block one specific number from being able to get through on my phone. I really do not want to have to change my phone number because of this one person who has been and continues to harass me and leaves me threatening messages on my voice mail. I have searched the tutorials and the manual thoroughly with no luck. I need to know if this is an option or not because if not then I will have to get a new number and all of the hassle that entails. Any thoughts or help would be appreciated.