1. A
network that allows functionality to be distributed flexibly at a variety of nodes on and off the network and allows the architecture to be modified to control the services. 2. In North America, an advanced network concept that is envisioned to offer such things as (a) distributed
call-processing capabilities across multiple network modules, (b)
real-time authorization
code verification, (c) one-number services, and (d) flexible private network services [including (1) reconfiguration by
subscriber, (2)
traffic analyses, (3) service restrictions, (4)
routing control, and (5)
data on call histories]. Levels of IN development are identified below:IN/1 A proposed intelligent
network targeted toward services that allow increased customer control and that can be provided by centralized
switching vehicles serving a large customer base.IN/1+ A proposed intelligent
network targeted toward services that can be provided by centralized
switching vehicles, e.g.,
access tandems, serving a large customer base.IN/2 A proposed, advanced
intelligent-network concept that extends the distributed IN/1 architecture to accommodate the concept called "service independence." Note: Traditionally, service logic has been localized at individual
switching systems. The IN/2 architecture provides flexibility in the placement of service logic, requiring the use of advanced techniques to manage the distribution of both network
data and service logic across multiple IN/2 modules.