I have used Obi 200 with google voice about 2 years ago. I stopped using it until now. I have updated the firmware along with resetting to factory defaults and then following instructions on web portal to link to my google voice account. On the web portal it says connected under the google voice SP. I cannot make or receive calls on my OBI. I get dial tone but that is it. I have even put my OBI on a DMZ with its own public IP to ensure it wasn't a firewall issue.
I also tried removing the 3rd party access to OBI from google and letting the setup process re-add it.
The only thing I haven't tried was using a different google account.
Any ideas? TIA