PETALUMA, Calif. -- Calix, a supplier of simplified services platforms designed to radically improve the economics of voice, data, and video service delivery for wireline carriers, today announced the appointment of Roger Weingarth as vice president of operations. In his new position, Weingarth will lead the company's ongoing initiative to scale its unique, vertically-integrated supply chain model to meet rapidly increasing market demand. "From day one, Calix invested in its operational infrastructure while developing strong relationships with suppliers and partners to create an efficient and scalable business process," said Carl Russo, president and CEO for Calix. "With over 25 years of operations experience in the telecom field, Roger is the perfect candidate to lead the company's continuing efforts to scale our business model while continually improving quality and responsiveness." Before joining Calix, Weingarth was president and CEO at Arista Networks, Inc. Prior to Arista Networks, Weingarth was prssident and COO at Optical Solutions, Inc. Weingarth has acted in senior management level roles in operations and quality assurance with Centron, Switched Network Technologies, and Network Systems. He also has held various management positions within ATT/NCR Corporation. Weingarth holds an MBA from the University of Minnesota and a BA from Bethel College. He is also certified by the American Production and Inventory Control Society in production and inventory management. According to Mr. Weingarth, "Calix has applied laser-like coherence to improving carrier economics by simplifying the technology within the telecom access network and streamlining the supply chain. The result is a uniquely innovative business model that will create a durable telecom franchise." Calix Networks