Comment Re:I did the same thing (Score 2) 107
Maybe it was that I was using Verizon, but the call quality was like a rollercoaster. I had bounceback issues, echoes, and some automated phone systems wouldn't recognize my DTMF tones. It's an idea I'd like to visit again, in the future, but I think the LTE nets aren't the best bet for VoIP.
That's true of VoIP riding on both DSL and Cable internet connections (both wired and wireless) as well. I've had VoIP for my home and office line for almost 3 years, and in the beginning we definitely had issues with both quality and DTMF. I still have issues with DTMF occasionally, and echos and call quality (esp. outgoing) less frequently.