because Bell has block call display function. I think it's free. You just dial something before dialing out the number, then the other side can't see it.
-jeffrey815(Smartiecat);
2001-11-27(#277135@0)
Nope, they can buy the service to block call display permanently.
-jeffrey815(Smartiecat);
2001-11-27(#277160@0)
These numbers usually cannot be displayed: calls from calling card, PC and the 10-10 numbers; calls from China.
-poohbear(nothing);
2001-11-27(#277494@0)