If you use the Windows operating system, you'll have a lot of commands and settings that can be accessed from the shell. But, how can you access them from your phone? The answer is simple: You can use the Voice Command for Cortana app, which is available for both Android and iOS devices.

When you ask Cortana for a specific command, she'll know exactly what you want. You can ask her to open the Settings app, or the Photos app, or even launch a specific app. You can also ask her to add a specific contact to your phonebook, or schedule an appointment for a specific time.

And that's not all. You can ask her to set a specific option on your phone, like toggling Wi-Fi on or off, or to set a timer.