Unfortunately, with Ooma you get what you pay for. It was a bit confusing to set up, but after about an hour of troubleshooting it worked. I've tried the phone and the Ooma mobile app on a few calls. The sound quality was nowhere near HD. I had the best audio quality when using a cellphone over WiFi. When using the mobile app on a 100Mbps fiber connection, I kept getting the "Poor network quality" warning when I was able to stream 4K video to a TV two meters away. Ooma was only a slight improvement over Google Voice.
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