OOMA changed my plan from basic to Premier

[sengsational]

+1, I've never understood using Ooma either, when Google Voice is free (except for E911 service) and Obihai ATAs are cheap.

What you get with Ooma is simplicity: a one-stop solution.

You unplug your house phone wiring at the network interface (on the outside of your house), then plug the Ooma device into any phone jack in your house, and another connection to your router. Now, any land-line phone you had before works just like it did before. Nothing to download, configure, or anything. Well, you do have to set-up an account with Ooma and check the box to port your old phone number, but it's not a technical task.

The more technical types can buy hardware that does what the Ooma hardware does and add a VOIP supplier, but then you have two suppliers and no top entity that covers the whole solution.