Before you head overseas with your cell phone, it's important to call your wireless carrier and see if signing up for their International Roaming plan will save you money. Most cell phone providers offer international roaming plans for travelers that cut the costs of voice calls by approximately 30% or more, depending on the country you're visiting. These plans usually cost $4.99 or $5.99 per month and be turned on or off as needed, so there's no need to have them on unless you're traveling.

