Icotera published an article written together with partner Harmonic breaking down the four ways a closed network locks operators in.

We empower ISPs and network operators to succeed by delivering outstanding end-user experiences through tailored and high-performing network termination and Wi-Fi solutions driven by our commitment to quality and the environment. Our company headquarters are located in Denmark, while all of our R&D and customer support operations are throughout Europe. We are a technological leader in our field, and our hardware and software development is produced in-house, guaranteeing our customers the quality they need. We have proven our ability to adapt quickly and effectively to future technologies, working with customers to provide them with the required services. Our products and solutions support leading network operators and service providers throughout Europe, providing high-speed Internet broadband and content services to hundreds of thousands of private homes via the growing network of fiber optic cables deployed across the continent.