The Intelligent Network, typically stated as its acronym IN, is network architecture intended by network nodes on the service layer, distinct from the switching layer of the core network, as opposed to solutions based on intelligence in the core switches or telephone equipments. The IN nodes are typically owned by telecommunications operators
IN is based on the Signaling System #7 (SS7) protocol between telephone network switching centers and other network nodes owned by network operators.
Some Intelligent Network Services are:
v Televoting
v Call screening
v Telephone number portability
v Toll free calls / Free phone
v Prepaid calling
v Account card calling
v Virtual private networks (eg : Family group calling)
v Centrex service (Virtual PBX)
v Private-number plans (with numbers remaining unpublished in directories)
v Universal Personal Telecommunication service (a universal personal telephone number)
v Mass-calling service
v Prefix free dialing from cell phones abroad
v Seamless MMS message access from abroad.
v Reverse charging
v Home Area Discount
v Premium Rate calls
v Call distribution based on various criteria associated with the call
o Location Based Routing
o Time based routing
o Proportional call distribution (eg between two or more call centers or offices).
v Call Queuing
v Call transfer
