Why does the mobile phone poll sim card with STK?

If polling is disable with POLLING OFF, what will happen?

<iron.wei@gmail.com> wrote in message
news:1148872986.189269.185380@y43g2000cwc.googlegr oups.com...
> If polling is disable with POLLING OFF, what will happen?
>
If the phone supports POLLING OFF then it will not send status messages
every 30s to the SIM while not in a call. In a call polling will happen as
normal.

Bet