The 7th reason to get a Google Voice account

I previously wrote 6 reasons why you should get a free phone number from Google Voice. Now there's a seventh reason. LifeHacker explains in Make Unlimited Free Calls on Your Cellphone with Google Voice that "Most cellphone carriers provide a feature allowing you a certain number of contacts that you can call, on any network, for free, anytime."

For example, with T-Mobile, they offer myFaves. You can specify up to 5 numbers in which you can make unlimited calls. Use your Google Voice account phone number as one of those 5, and then you can make unlimited calls to any number through your Voice account.