I am trying to find out whether or not a device is capable of using the phone feature by using sys/types.h and sysctl.h's HW_MACHINE identifier. My question is once I've imported sysctl and types can I just call HW_MACHINE to receive the current machine's class info? Is this accurate? When I do it this way, HW_MACHINE returns 1 in the simulator and 1 on my iPod touch. Is this the correct way of doing this? Any help would be appreciated, thanks!