I'll have to admit that I don't know too much about these things. They are more complicated than Denon av receivers. They only reason I have one is because my son was hot about having one. I've used 2 providers. The first provider was a midwest reseller of T-Mobile's service. I wasn't happy with their limited service area, anytime I left town I was out of the service area, and the signal strength from inside of buildings was horrendous. I have since switched to the big V. I got 3 free LG phones in the process. They have way many lights. It's like having a Xmas tree in your hand. And it works everywhere. No more limited calling areas. And I can actually make a call from a room in my house. What a novel idea. WAY
I use it for the once-in-awhile long distance call. The rest of the time it's pretty lonely.
