Avy is PHP Voice Processor for PIAUISuite by Steven Hickson for Raspberry Pi. It comes with a web interface, also know as dashboard, so you can always click a button on your mobile phone in cases like busted microphone, bluetooth headset is low-bat, or no internet. You can watch the videos below to see Avy in action.
Avy with Relay (Speaker & Coffee Maker)
Schedules with Tack Switch
Controlling TV with IR Blaster
This installation guide assumes that you have knowledge on how to use Linux and that you have already installed Raspbian or any linux OS to your Raspberry.