I have an Obi100 set up and working with my GV account. seems to work great, except for one thing:
The phone light (on the Obi100) blinks when a call comes in, as expected. and if i pick it up while the light is blinking, the call connects and it all works just fine. The only problem is the the phone does not ring. I've tried two handsets (that both work/ring otherwise).