Picture Caller ID identifies callers before you answer the phone. Call Blocking enables effective telemarketer call block by cutting off black-listed numbers, such as the numbers that are blocked, out-of-area, or unidentified. Picture Caller ID lets you screen your calls using text-to-speech to announce the caller's name and number, so you only answer the call when you want to. It sits silently in the system tray, only notifying you when a new call comes in. Picture Caller ID supports a number of fully customizable methods of telling you who's calling, ranging from enabling a large full-screen Caller ID display that can engage itself automatically in case you are away from your computer, to displaying an unobtrusive Caller ID tool-tip notification near the system clock that will not disturb your work. Each caller can be assigned a unique ring sound so that you know who's calling even if you are far from your computer.