To help service providers deliver a rich variety of services to a wide range of devices over multiple access means, Cisco Systems offers the Cisco Service Exchange Framework (SEF), which allows service providers to control customer access and use of services, without limiting the types of applications that can be deployed. The access independent, open SEF helps network operators achieve better understanding, visibility, and control of their network by answering such questions as who their subscribers are and what authorized services and policies govern their use. It helps network operators to assess how the network can be dynamically controlled and indicates where the users and their devices are at any given time.
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