The Communications world has seen explosive and revolutionary changes over the past decade. The resulting paradigm shifts have led to the emergence of new standards & services. The result is that the service providers have to continuously keep upgrading infrastructure to add new innovative services leading to higher cost for the provider also most times this change takes too long, giving first/early movers a major advantage. The need of the hour is a network that can deliver an array of services - existing and emerging - without the need for a major overhaul each time there is an innovation. The evolving Next Generation Networks (NGNs) offer just this. |