iBerry Black & Whitelist allows you to screen who is calling your BlackBerry phone. You can 'blacklist' people who you don't want to speak to and 'whitelist' those that you do.
Creating these lists in iBerry Black & Whitelist is a simple task that can be done in a number of ways. You can either add numbers to the lists from your contacts, or go through your call logs and mark them as black or white using the appropriate radio button. You can also choose to blacklist anyone whose number is hidden when they call.
iBerry Black & Whitelist works effectively, and disconnects the phone within 50 milliseconds of a call coming through, leaving your caller unaware that they've been blacklisted - they'll just think that your phone is switched off. Your BlackBerry won't make a sound or vibrate, so you won't even know about it until you check your call logs.
There are loads of options and blocking settings to tinker with in iBerry Black & Whitelist, so the menus get a little cluttered, but once you've worked out the way you want to block people, you learn to ignore the ones you don't need.
iBerry Black & Whitelist makes an effective solution for blocking unwanted callers.