BlackBerry Firewall: block something (messages) unwanted
In my previous phone, Nokia Symbian 6120c, I am using Advanced Call Manager Free (standard version) to resist (block) unwanted calls. Now I am using BlackBerry Curve 3G 9300 which turned out to have brought a similar feature with the name BlackBerry Firewall.
By activating the firewall you can hold a message from another BlackBerry pin messages, SMS messages, and unwanted email. But can not hold (block) the phone that are interfere.
To activate this feature, please go to the menu Option, Security, and Firewall. There you have to fill out the check box so that the Firewall is active. Select the item what you want to hold and from anyone.