How to make and receive calls with WhatsApp for Android

Sometimes, texting just doesn't cut it. Maybe it just feels a little impersonal or maybe you just can't wait to hear a loved one's voice in real time. Thankfully, one of the features that WhatsApp introduced early on is calling, and the service offers both voice and video calls -- as well as group calls for both. The feature is incredibly useful for staying connected to friends and family, and the best part is that it is absolutely free. Here's how to make or receive calls with WhatsApp for Andr...