3. In the Channels section, highlight a cell broadcast channel.
4. Press the key > Set Nickname.
5. Type a name for the cell broadcast channel.
6. Click OK.
7. Press the key > Save.
Security options for messages

Block incoming messages

If your email account uses a BlackBerry® Enterprise Server, you might not be able to block or unblock PIN messages from contacts within your
organization, from contacts outside of your organization, or both. For more information, contact your administrator.
1. On the Home screen or in a folder, click the Options icon.
2. Click Security > Firewall.
3. Select the check box beside one or more message types.
4. Press the key > Save.
Note: Even though you do not receive blocked messages on your BlackBerry device, blocked messages might contribute to data usage in your
wireless service plan. You can stop email messages from being forwarded to your device without contributing to data usage by turning off email
message forwarding or by using email message filters.

Allow messages from contacts in your contact list or allowed sender list

1. On the Home screen or in a folder, click the Options icon.
2. Click Security > Firewall.
3. Select the Contacts check box or the Specific address check box.
4. Press the key > Save.

Add a contact to your allowed sender list

To perform this task, you must set the security firewall to allow messages from specific addresses. This setting allows you to receive messages
from contacts in your allowed sender list.
1. On the Home screen or in a folder, click the Options icon.
2. Click Security > Firewall.
3. Click Contacts or Specific Addresses, Phone Numbers, or PINs.
4. Type the contact information.
5. Press the key on the keyboard.
6. Press the key > Save.
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