I use Ooma, but was unable to port my phone number. My phone company was one of those small town holdouts that never really integrated into Ma Bell.
I was able to port the number to a tracfone, which I then call-forward to the Ooma. Pay $50 extra a year for this. Wife wants our "classic" number to still work, so that's what I do. Still come out ahead.
Just came to my attention that "my" tracfone does VOIP, so I might dump ooma and get the same phone for my other line, aka the former land-line.
VOIP over wifi uses a much smaller amount of RF, since you're just reaching your own router, not some cell tower two miles away.
I got a phillips smart tv, what a POS. Got a walmart imitation-Chromecast dongle to stream with as its interface glitches less. The Phillips had ethernet, but, it too was glitchy. The chromecast doesn't. An ideal scenario would be to get a 2nd wireless access point on a different wifi channel to service just the TV, while having my regular one do all the other devices. But at this time, we don't watch much tv at all...
The secret with cable companies is to NEVER CHANGE YOUR PLAN. When you do that, they figure you've got money, and won't let you backtrack to your old plan. They used to be regulated, 30 years ago, and would publish a "rate card" that was universal for your town. Now, it seems, anything goes. You have to give them your address for a price quote.