I just logged into my Voice account. It shows I have a $1.00 calling credit, but when I click on the question mark next to that note, I get the following:

I just logged into my Voice account. It shows I have a $1.00 calling credit, but when I click on the question mark next to that note, I get the following: Calling Credit shows how much credit you have available to make international calls from Google Voice. Calls made within the U.S. and Canada are free and don't affect your balance.