LISBON, Portugal & TOKYO & WALTHAM, Mass.--(BUSINESS WIRE)--NEC Corporation (TSE:NEC 6701) and NetCracker Technology announced today that they have successfully completed a proof of concept (PoC) for their virtualized customer-premises equipment (vCPE) solution at Portugal Telecom. The PoC took place in March 2015 and validated new revenue opportunities for vCPE in residential markets. Portugal Telecom is the largest telecommunications service provider in Portugal, providing fixed, mobile, mult