Most of us have long-distance calling included in our phone plans. However, few of us actually have plans that include international minutes. Most of us don’t make many international calls, but when we do, the calls can be a bit expensive. But not anymore. I’ve been playing around with the Vonage Time to Call app for iPhone, iPad, and iPod Touch mobile devices. It’s a pretty neat app for making international calls. It’s great for international students, travelers, parents with kids overseas, and frugal dads like me. With the free Apple app, dads and moms can call and talk for up to 15 minutes to 100 countries for $1.99 or less. Read on for more information about the Vonage Time to Call app, how you can get 15 free minutes of international calling, and how you can win $715 in iTunes gift cards (for buying something called the iPad 2 — have you heard of it?).