The upside of unlimited calling plans is that you can call as much as you want; no surprise charges or hidden fees. These plans are good for people who have a large network of family and friends in one geographic location. Another upside is that if you make a lot of international calls it’s usually cheaper than traditional calling methods. If one person in your household makes 100 plus calls a month, an unlimited plan may be for you. This doesn’t mean there aren’t any downsides to these plans though.