Insight Poll: What is the greatest benefit for network virtualisation?

GSMA is working with operators to expand 4G coverage and deliver the best experience possible, on any device, anywhere in the world, using network function virtualization (NFV), software defined networks (SDN) technologies.   Moreover, the GSMA is developing the technological and commercial roadmap that will help operators to make the optimum transition from 4G to 5G the greatest benefit for network virtualisation?