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Calix Leadership

Carl Russo
President and Chief Executive Officer

Kelyn Brannon-Ahn
Chief Financial Officer

Roger Weingarth
Executive Vice President and Chief Operating Officer

Frank Wiener
Vice President, Product Development

John Colvin
Vice President, Field Operations

Tony Banta
Vice President, Manufacturing

Mark Dressler
Vice President, Major Account Sales

Rick Cassidy
Chief Information Officer

Mitch Fleming
Vice President, IOC Sales

Denis Quinlan
General Counsel

Omar Ramadan
Vice President, Customer Service

Omar Ramadan

Omar Ramadan, Vice President, Customer Service

Omar is vice president of customer service for Calix. He has over 15 years of customer service experience in the networking and telecommunications industries. Omar oversees all aspects of customer support, training, documentation, and web-based tools. Prior to joining Calix, Omar was with Advanced Fibre Communications (AFC) working in a number of support-related positions, most recently as director of technical services. At AFC, Omar was responsible for building a technical organization that supported over 750 North American service providers. Before AFC, Omar managed installation activities of outside plant loop electronics at DSC (now part of Alcatel). Omar earned a BS in electrical engineering from Texas A&M University.
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