Always there is the opportunity you annoyed by the insistent calls from any of your contacts and urge you to keep an application at bay for the inconvenience on your Blackberry. That's what AddOnis, Also called BerryAddon, Which is a multifunctional software that lets you block unwanted calls.
When you install the application, then you develop a sort of blacklist and add simultaneously trying to block numbers from your address book. The lock option is for private calls or unknown phones.
AddOnis use a firewall to filter unknown calls and supports BlackBerry models OS 4.5, 4.6 and 5.0. The program also has the option of notification for missed calls.
