Have this mindset - your kids are better than you at computers. Accept it.
Their iPhone was jailbroken before it was featured on engadget.
Setup call forwarding on the iPhone itself
Google Voice
Dual boot the OS on the iPhone.
Pre-paid - either just a sim or even a 2nd phone
'Accidentally' leave the phone at school enough times that mom/dad stop bothering w/ the service.
Setup call forwarding on the iPhone itself Google Voice Dual boot the OS on the iPhone. Pre-paid - either just a sim or even a 2nd phone 'Accidentally' leave the phone at school enough times that mom/dad stop bothering w/ the service.