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Allocation of functionality in flexible access networks

The increased demand for telecommunication services, both in volume and diversity, encourage telecommunication administrations to install flexible access networks. A flexible access network, based on the newest technology (e.g., fiber transmission systems, software controiled access nodes) makes it possible to provide a broad range of subscriber interfaces and services. Modern operations systems will automate the provisioning and maintenance processes to a large extent, reducing the time to introduce and begin providing a service. A flexible access network requires standard interfaces to the rest of the telecommunications network and the operations systems. A new approach to the allocation of functions among the network elements of the access network and the rest of the telecommunications network is required to obtain a useful interface specification.