When I first got a cell phone I ported my landline number over to it. It has been with me through 2 carriers now, without issue. My grandmother did the exact s

When I first got a cell phone I ported my landline number over to it. It has been with me through 2 carriers now, without issue. My grandmother did the exact same thing, again without issue. I am thinking that the market for people doing this is finite and limited, but there is likely money to be made on making a clean experience (versus Google Voice) serving the ever dwindling population of people who actually have land lines.