Ooma and Ooma handsets
I'm finally finishing an out-of-state permanent move that has taken a year to accomplish completely.
I decided to try Ooma rather than traditional land line in the new location and to get it ready while still in the old. I didn't want to port my old phone number.
Amazon had a decent price on the Telo + wi-fi/bluetooth adapter so I bought that. Discover has a current (3Q 2015) 5% cashback offer on Amazon purchases, which lowered the equipment cost a little bit.
I just went wi-fi only from the start and the only stumble is that my home network is not "visible" (e.g., it doesn't show to devices, you have to know the name and password). I was able to fix that in the web setup process, but it wasn't obvious so I did the "support chat" thing for help.
Once set up, I was surprised at the clarity - no dropouts, tones, delays, etc.
The cost for me is tax ($4.x/mo). As a new subscriber, I have a free trial to Premium but if it keeps working so well after more experience, I'll pay the $9.99/mo for that. Overall, it's much less expensive than what AT&T was getting from me.
By the way, Ooma is yet another thing I first learned of right here at e-r.org.