I am precisely in the same situation as ktalk. Just purchased a OBI200, as the old 100 is "out of life"....the politically correct, and cover term for "planned obsolescence"! Fine, got with the program, bought a new device! I too have no luck configuring with Google Voice. Added OBI200 to dashboard with no issues. When i start to add SP1, I get the dreaded pop up "ObiTalk cannot configure device", even though all is OK in my Google voice account. I removed my older OBI100 device from dashboard, removed the new Obi 200 and re-installed it again, but no go. I did go through Steve's suggested steps....still no luck!
This issue looks like a systematic error that Obihai does not seem to have addressed, even though I see several people posting the same issue on this board!!!
Been using several obis in the past in several countries with no configuration issues at all with gvoice. Something has changed. Somebody from obihai should look into it and give us a response. It will be appreciated!