Use IVR to contorl things, when dial a number, the system will prompt "press 1 to power on device, press 2 to power off". After that, user can power on / off by pressing number 1 or 2. | Use IVR to contorl things, when dial a number, the system will prompt "press 1 to power on device, press 2 to power off". After that, user can power on / off by pressing number 1 or 2. |