Thanks Drgeoff. I ran through the procedure outlined in the link you provided, including deleting my device and hard resetting my Obi200. Unfortunately, things are still as they were before.
On my Obi account page, under "Device configuration- home phone" ("home phone" is what I named the device), all my pertinent Obi information has self populated during the connection establishment (Obi no., MAC address and Serial number).
Below that, under "Configure Voice Service Providers," SP1 shows Google Voice with a status of "Connected."
When I click on my Obi Dashboard, the "Home Phone" row shows my Obi number, Speed Dial "2" and a green light under Status. The next row shows SP1, Google Voice and says "Connected" under status.
This isn't turning out to be quite as "Plug n' Play" as I'd hoped, lol...
My handset HAS a dial tone, but when I place a call with the handset, I get one ring and then a busy signal.
Also, FWIW, I've tried a different phone handset with no changes.
Lastly, only TWO of the lights on my Obi200 are illuminated- Power (red) and "O" (green). I have yet to see the "phone" light illuminate.
Thanks.