If you need to make a single quick call home, just use your cell phone. Most of them work overseas nowadays, and while you may be overcharged, you avoid the hassle of phone cards. (E-mail is obviously the cheapest option, but sometimes you need to hear someone's voice.) If you're planning on dialing internationally multiple times or for long periods, try Skype, a phone service that works via the Internet. You can call other Skype users for free, and connecting to a landline or cell phone costs pennies per minute. Click here for answers to all your Skype questions, and here to download the Skype app to your iPhone.