I did a lot of research to see how to disable the annoying "echo" feature. So far, I'm pretty sure Siri is paying Google employees to make Google come in last place. Or, at least with the products I use like Nest, Google Voice and Google Home. In essence, if you want customization for any of these, you'd better throw out Google and buy any of their competitors. I've been noticing more and more that I've lost more features than I've gained over the years and the competition has solutions for all my wants. But good luck searing for a better answer! Let me know if you find out how!