I have configured Obitalk 200 model with google voice and its working fine for incoming and outgoing calls with USA. Recently i loaded some credit into my google voice account to make international calls. I can successfully able to call internationally from Hangout. But when try to make the international call from the phone connected with Obi device, I am keep on getting the ring tone even the number is not reachable or switched off. And also the called international number is not ringing if its reachable.
Please search the forum http://www.obitalk.com/forum/index.php?topic=11088.0