Top positive review
After 3 days its working great using WiFi
Reviewed in the United States on April 9, 2018
After 3 days its working great. I started out with a wired Ethernet connection and had that working in the 15 minutes they claim. Calls were clear and both incoming and outgoing worked without a hitch - connected to a legacy AT&T touch tone phone I've kept for testing the land line.
Next I configured WiFi use and disconnected the Ethernet cable. Still works fine. If it continues to do so for a week I'll cancel my land line.
The reason I deduct 1 star is because the documentation leaves gaps in what you need to know. For example, they don't tell you what to do after you finish the WiFi configuration (e.g. unplug what and when) or whether you need to start with a wired internet connection - not a step-by-step clear set of instructions. Further, I used a laptop with WiFi off and an Ethernet wired-to-Telo Air connection - but they don't tell you if you need to configure TCP/IP on the laptop for DHCP or a static IP address or a gateway or subnet mask or anything. My connection to Telo configuration worked but I'm nor quite sure how/why the never used/configured Ethernet port worked for TCP/IP communications to the Telo. And what if this port was previously configured (e.g. static IP address such as 10.x.x.x) - would it still have worked? If the glossy brochure doesn't fully explain, then it should point to a web link that does explain.
Finally, the OOMA web site description of what you get isn't a match to what is in the box - the box's glossy card does say what you should have in the box (no plug in WiFi adapter - not needed).
But given those issues, the device does work better than I expected!