Cisco’s John Chambers used his keynote address at this year’s Mobile World Congress to stress his belief that video provides the key to encouraging consumers and enterprises to pay more by fundamentally changing the way they communicate.  “If you can drive productivity by one to two percent a year, you don’t need to ask how you charge for that as a service provider,” he said. “It won’t be 60 percent of loads on networks five years out that will be visual. It will be 80-90 percent. Everything you do will have visual capability.”