The BT8500 can block a lot of individual numbers meaning that you really can avoid speaking to the people you don't want to. With this phone you can choose the type of calls you want to block. For those times when you just want some peace and quiet, switch on "Do Not Disturb" so that your phone won't ring or light up. If you want key friends and family to still get through they can do, by tagging them as VIPs in your address book.