Well, sort of. I'm now using Google Voice as a land-line.
For portability I have a personal Hot-Spot and an old iPad that is NOT chipped for phones. I can use the iPad's browser, with my Hot-Spot, to get to my Google Voice account.
I can get voice and pictures and text but for the most part it's at HOME.
I have a nice setup at my home. The one thing I noticed is when you have a high fidelity setup, EACH song needs a different volume setting. You can't just turn it on and go about your day. You have to run to the living room and adjust EACH song. It's a pain unless you just want to listen to JUST ONE song.
A couple of cheap speakers in the ceiling of the kitchen is "better".
The town I live in is 3 blocks long. The fire department is in the middle block. I can crawl to the ambulance.