Metro PCS is a cellphone carrier that offers unlimited calling for a fixed price. They recently started flashing phones from other carriers to use on their networks. You used to have to buy their crappy phones... but alot has changed.
They have limited coverage- but rapidly expanding, but that is outweigh by its unlimited minutes, unlimited text, unlimited internet fixed price.
I give metro 2 thumbs up!
For more info check this out:
http://www.metropcs.com/plans/