About call blocking
The blocked calling feature allows you to block all incoming calls or block incoming calls only when roaming. You can also
block all outgoing calls and all outgoing international calls, or you can block outgoing international calls only when roaming.
To use the blocked calling feature, 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. Depending on your wireless
service provider and wireless network, this feature might not be supported.