Tellabs, Inc. is engaged in designing and marketing equipment and services to communications customers worldwide. The Company’s products and services enable its customers to deliver wireline and wireless voice, data and video services to business and residential customers. It sells its products domestically and internationally through its field sales force and distributors/partners. The Company’s customers are primarily communication services providers, including local exchange carriers (LECs); national post, telephone and telegraph (PTT) administrators, wireless service providers, multiple system operators (MSOs), and competitive service providers (CSPs). Its customer base also includes distributors, original equipment manufacturers (OEMs), system integrators and government agencies. The Company operates in three segments: Broadband, Transport and Services.