Will I get charged for calls I make from google voice since it's forwarding?

I have an Unlimited calling plan on Verizon, I signed up to google voice (kept my own number) just to make international calls. I know it uses call forwarding, so am i going to get charged for the amount of time I spent talking? Or does it not count because I have unlimited minutes?|||How did u get invited ti use google voice. PLS. let me know my email add is happening666@yahoo.com





Thanks