Nowadays the new environemnt of telecommunication is characterized by
a step and a race to competition between different companies, operators and
industries to provide unimaginable services to the users.  A method to provide
rich and plenty of new services was done by the introduction of the Intellgent
Network (IN) technology.  In the beginning of telecommunication networks the
idea was to develop the physical aspects of such a network.  For many decades
the goal was to provide an efficient and less costly connection between distant
sites.  At that time no importance was accorded for the future need and 
deployment of services.  There came a time where the need to deploy new
 services was felt, because of the users needs.  In those early days new services were
integrated right in the switches software throughout the whole network.  With
the years flowing by, there came a time around the 1990's, where no more
software for new services could be placed in the switches.  The reason for this
was because of management problems, safety problems, adaptive measures, vendors
problems etc...  Management was becoming too much of a complex task becuase
of the enormous amount of services put in place.  With all the software of
services placed in the heart of the switches the number of safety problems
were increasng.  Adaptive measures add to be done on old software because of
the new software placed in the switches.  Vendors problems concerning the 
independance of the equipment, created other problems.

	To diverge from what could have been a possible catastrophe speculated
by some people, the concept of IN came at the rescue.  The primarily concern
was to no longer embed the switches or any other equipment with new software.
A totally new and flexible network architecture had to be designed.