To perform this task, your BlackBerry smartphone must use a
SIM card, and your wireless service provider must set up your SIM card for this service
and provide you with a call blocking password.
From the home screen, press
the key.
Press the key >
Options > Call
Blocking.
Highlight a call blocking option.
Press the key > Enable.
Type your call blocking password.
To stop blocking calls, highlight a call blocking option. Press the key > Disable.