To the local‐exchange carriers (LECs), the intelligent‐network concept is a strategic goal for building new services and becoming more responsive to their customers. To meet the LECs' objectives, AT&T has introduced its A‐I‐Net™ advanced‐services‐platform (ASP) products. AT&T's offering for the ASP supports the intelligent‐network concept while still interworking with existing switch‐based features. Thus, the LECs can maximize use of their previous investment in network‐switching hardware and software while still offering new services through the ASP's distributed network intelligence. AT&T has also been working with the Regional Holding Companies and Bellcore to plan their Advanced Intelligent Network Release 1 architecture, which has been proposed as the next‐generation, intelligent‐network platform. Advanced Intelligent Network Release 1 makes possible an even wider variety of services than the ASP by defining a more flexible switch interface with a corresponding expansion of the communications interface between the switches and external‐service‐logic nodes. This paper describes the architecture, features, and services provided by AT&T's ASP as well as the new capabilities planned with Advanced Intelligent Network Release 1. We focus primarily on AT&T's 5ESS® switch features.
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