Tellabs, Inc. engages in the design and marketing of equipment to telecommunications services providers worldwide. Its products and services provide solutions to deliver wire line services, wireless services, and broadband data networking for business and residential customers, and bundled voice, video and high-speed Internet/data services. The company’s products include transport systems that enable service providers to manage bandwidth; access products, which enable service providers to deliver the triple play of bundled voice, video, and high-speed Internet/data services over fiber-based networks; managed access systems; broadband data systems; and voice-quality enhancement systems that enable service providers to improve voice quality in wireless, long distance, and private communications networks. It also provides network deployment, traffic management, support services, professional services, and training. The company serves incumbent local exchange carriers, wireless service operators, post telephone and telegraph administrations, independent operating companies, original equipment manufacturers, cable and multiple system operators, competitive local exchange carriers, system integrators, and alternate service providers through partners and distributors. Tellabs was founded in 1974 and is headquartered in Naperville, Illinois.