raytaylor: I have a computer in a place that needs rebooting every so often and i cant readily access it. I have a dtmf controller that connects to a phone line and when I call it, I can cut the power and restart the computer quite easily, but i have no phone line at the location of the computer.

I am thinking of getting one of those vodafone at home boxes for $199 and want to know if i can put a prepay sim card into it rather than pay the $25 each month since it wont be making outgoing calls?