This is a wild guess, check the pins in the phone port and see if they are shorted. This never happen to me on an ATA, but it did on a wall jack. One of the pins popped out of its slot and shorted out on another pin.
Is your OBi under warrantee?
Check to see if the OBi is totally dead or it's just the phone port.
Log directly into the OBi using the local interface.
Key the IP address of the OBi into a Web Browser.
Hit Enter
The UserID and default Password are both "admin".
If you can login, the OBI is probably functional except for the phone port.
Since you can't use the phone port to discover the IP address, you will need to look at your router's status page.
If your OBi is still functional, I can show you how to use it with and Android phone, a Windows computer with a headset or an old non-OBi ATA.
If you deleted your OBi from OBiTalk you won't be able to add it back, so you won't be able to define/use GV. Any other provider can be defined locally (maybe not
Ring.to).
Edit:
I re-read the beginning of this thread. It's a new OBi100, so return it.