AT&T is moving quickly to transform itself into a software company, said John Donovan, Chief Strategy Officer, in a keynote at the sixth annual Open Networking Summit in Santa Clara, California. Last year, AT&T hit its target of virtualizing 5% of its network functions. This year, the company aims to increase its NFV rollout to 30% of network fuctions. This includes some 39 VNFs going into the production infrastructure....