The mobile messenger app has had a string of new features and most recently, added a video calling function. Stan Chudnovsky, the head of product at Messenger says that the Facebook feature differs from its competitors such as Facetime and Skype in that it offers the user the ability to upgrade conversations from texting to video whilst inside the app. He said that this is in keeping with the way most users, particularly young, chat in this day and age.
In recent months there have been extra features such as a standalone desktop site and payments and now the video calling feature is the Messengers latest enhancement.
It has been said that the recent enhancement of the app may even affect traditional telephone carriers in terms of revenue and call volumes. This is along with the calling and texting features from other tech companies including Google. Just last week, Google started its own wireless calling service which is routed through Wifi Networks instead of cellular towers.
http://www.cultofmac.com/108343/facebook-messenger-app-lets-you-chat-with-your-friends-video-chat-may-be-coming-soon/
Chudnovsky strongly advises that they will not being making a single dime out of the new feature this year. Every month, there is approximately 600 million users conversing and the app also has the potential to expand to group chats and connect users with businesses.
Facebooks aim is to have the feature function on both low and high end smartphones without using too much data. Users are also able to turn off the video feed of themselves to reduce the usage. Chudnovsky claims that they wanted someone with a low end Android phone in Bangladesh to have a good conversation with someone with a high end connection in somewhere like San Francisco.
Whilst Facebook is also the proud owner of Whatsapp, another international communication application, they have no intention of expanding the video calling function to it at any stage soon.
After 5+ years in development, we're excited ... 
