MADRID & WALTHAM, Mass.--(BUSINESS WIRE)--NEC Corporation, NetCracker Technology and Telefónica Business Solutions have successfully completed a Proof of Concept (PoC) based on SDN/NFV that allows Telefónica to accelerate its strategy to automate operations and provide a new agile WAN on the business market. Telefónica, which won the award for “Operator of the Year” in the category of network virtualization, has partnered with NEC and NetCracker on this PoC, combining software-defined networkin