That is what definitions say, but probably eventual NGN advantages are of bigger importance. Worth mentioning are some requirements for NGN it should conform to [3]:
- High-capacity packet transfer within the transmission infrastructure, however, with a possibility to connect existing and future networks (be it the networks with packet switching, circuit switching, connection-oriented or connectionless, fixed or mobile).
- Separation of managing functions from transmission features. Separation of service provisioning from the network and ensuring the access via an open interface and thus a flexible, open and distributed architecture.
- Support for a wide range of services and applications by using the mechanisms based on the modular and flexible structure of elementary service building blocks
- Broadband capabilities, while complying with the requirements for QoS (Quality of Services) and transparency. Possibility of a complex network management should be available.
- Various types of mobility (users, terminals, services). Unlimited access to a variety of service providers.
- Various identification schemes and addressing which can be translated to the target IP address for the purposes of routing in the IP network. (Flexible addressing and identification, authentication).
- Converged services between fixed and mobile networks (as well as voice, data and video convergence). Various categories of services with the need of different QoS and classes of services (CoS).
- Conformance to the regulation requirements, such as emergency calls and security requirements in terms of personal data protection.
- Cheaper and more effective technologies if compared to the current technologies.