Pacific Bell´s network and systems concept of the 90s

An overview is given of a concept developed by Pacific Bell of integrating the functionality of its service-carrying network and its operational support systems to serve its customers needs in the 1990s, economically and effectively. The concept is called network and systems concepts of the 90s, or Netsys, for short. The concept serves as a focal point for network systems and operations planners by providing a common conceptual reference from which strategies can be developed