I do not think so. After 30 minutes testing, here is the situation:
Both my GV accounts are set up to ring the Obi phone plus my 2 cell phones(T-mobile and Verizon). My GV 2 account, which I barely use, wo9rks fine.
Now, my main GV account lets the call go into the voice mail whenever my Verizon phone is off ( very often because I use it as a back up in areas with not so good t mobile coverage.)
I can " solve" the problem by either leaving the Verizon phone on all the time which I do not want to or cancel the forwarding to the Verizon phone. But that makes the GV forwarding entirely useless, the beauty of the whole thing was that I could pick up the any phone plus anyone could reach me in areas without t mobile coverage without giving them my Verizon prepaid number. Dammit.
Obviously, this is not a OBi problem.