Well now BB have an app for all blackberry users:
Just install it
http://bbapp.org
Free calls from BB -» BB,
If 2 BB users have the same application, they can call each other for free :D
make use of this and broadcast
Remember - the person u calling must have installed it 4 it to work
Alaga Michael
ALWAYS SAYING HELLO TO YOU IN ANY INFORMATION THAT YOU NEED