How often do people use smart phones this way? Still not popular, probably because without the video you can get...

How often do people use smart phones this way?  Still not popular, probably because without the video you can get away with more.

Originally shared by Open Culture

Fritz Lang Invents the Video Phone in Metropolis (1927) 
http://www.openculture.com/2015/06/fritz-lang-invents-the-video-phone-in-metropolis-1927.html