Messenger’s New Function – Video calling

This Facebook app provided similar functions to Skype, Hangouts and FaceTime which make people can face-to-face connect each other through the app.

It also is a user friendly app, people can start a video call with single tap. When people feel that the message hard to describe some things or place, they can tap the video camera icon in the app for sharing the scene.

By starting the video call, people just have to tap the video icon that appear in the right corner of the screen.

Sources : http://www.theverge.com/2015/4/27/8503443/facebook-messenger-video-calling