I’ve made some major advancements in figuring out voice control. Initially, I was using an independent module — but I’ve discovered the WEMO micro-processor which has made it easy to communicate with an Alexa echo. Now you can give the Alexa a command which it sends to the WEMO — and the WEMO can then control all kinds of sensors, motors, lights, etc.
Here are instructions for how to use a WEMO to control a garage door remote. For us, we have a garage door remote to control the front door. So, by giving Alexa a simple command we can open and close the front door.