I understand there is a fix for non-gmail, non-google app account. See the link here
http://www.obihai.com/faq/GV-and-the-OBi/nonGmail-Username-with-GV-on-OBiHowever my account is non-gmail but a google app account. As a result, the above fix does not work. It won't ask me to create a gmail account for the google voice account. Now I'm stuck in this "Backing off ...". It happens in the last a couple of days.
Please help!!!!