Remotely power up your PC with Cortana using VoiceWake for Windows Phone 8.1

VoiceWake Lite is a new app for those running Windows Phone 8.1 and Cortana enabled. The app has one singular purpose: wake up your PC using Wake On LAN.

To use the app, just download, and it configure it with your PC’s MAC address, IP info and some other stuff. Although you need to have Wake On LAN enabled on your PC. Once you have everything configured, you can then use this command at your phone Cortana wake (computername).

A paid version is also on the way, which includes location based wake feature and a wake schedule feature. Giving you the ability to tell Cortana to wake your PC when you arrive somewhere, or at a given time.

You can get  Here.