How to block unwanted calls and SMS on your BlackBerry?
How to block unwanted calls and messages on your BlackBerry smartphone?
To block messages from a particular contact, use the firewall application installed on your smartphone.
To access this feature:
Tap on the Menu key > Settings > Security Options > Firewall.
Choose the items you want to block:
PIN (BlackBerry PIN).
Choose you exceptions (whitelist - who can send messages):
Enable the Firewall
Note that: You can edit this list at any moment.
BlackBerry doesn't provide any native feature to block incoming calls. The only solution is to make use of a call blocker app from the BlackBerry App World.