David is Ribbon's Head of IP Solutions and IP Portfolio Marketing, where he focuses on the company's IP transport portfolio and IP-enabled solutions for 4G and 5G Mobile Transport, mission-critical industries and defense, homeland security and government. He is an experienced professional with extensive telecommunications knowledge gained from working across all infrastructure technologies including SDH/SONET, Fixed and Wireless Access, IP/MPLS, Carrier Ethernet, PON, Optical Transport and Network Management. Before Ribbon, David held roles in Development, Systems Engineering, Product Strategy and Product Management at a number of companies including Marconi, Fujitsu, Lucent Technologies and Nokia. He brings this proven combination of marketing, technology and product strategy expertise to his current marketing role at Ribbon.