Ok, i've been reading a lot about the dual SIM adapters. I have two simple questions:

1. Which one fits best in the 8700?
2. If i select an auto-switching one (i want to have my data SIM active 5 minutes every half hour and the rest of the time my voice SIM), do i have to press some button to confirm the switching or activation of the SIM during the switch?

Thanks,

Ton.