You symptoms and description, and the firmware version you posted, all suggest that you have previously blocked access to your device via OBiTALK. Your device has the wrong/old firmware.
If you want to use Google Voice, then delete your device off of the OBiTALK web portal, factory-restore the device (pick up the phone and key in ***8 then 1), wait patiently for it to grind through the process, then add it back to the OBiTALK portal, wait for it to automatically update to the current firmware, and then configure Google Voice via the OBiTALK portal.