I did find this thread and it did help me greatly.

But, (here's the but part)...

Now I cannot hear incoming calls.

My tablet rings, i can answer incoming, and speak and the people on the other end can hear me, but i cannot hear them.

This only happens with incoming calls. Outgoing calls work perfect.

So now with simonics SIP GV gateway, I can make calls no probs...

Just receiveing calls, i can talk.. and all is good.. just can't hear the incoming audio.

I did go to Google Voice and clicked on google chat and also (DISABLED the check box for mobile phone), but this did not fix the incoming audio issue.

Any ideas?

There's a small little bug that happens sometimes when using VOIP on the tablet.

The fix is to slightly adjust the phone's volume either up or down.