Authorization, authentication, and accounting functionality referring to either the server providing such functionalities or to protocol (usually Diameter or Radius).
Published in Chapter:
Practical Experience with New Services and Applications Supported by NGN
Pavol Podhradský (Slovak University of Technology, Slovakia), Eugen Mikóczy (Slovak University of Technology, Slovakia), Matejka Juraj (T-Com, Slovak Telekom, a.s., Slovakia), Ondrej Lábaj (Slovak University of Technology, Slovakia), and Róbert Tomek (Slovak University of Technology, Slovakia)
Copyright: © 2009
|Pages: 18
DOI: 10.4018/978-1-60566-046-2.ch043
Abstract
This chapter presents results of practical experience with NGN and mainly its application layer. The presented university laboratory based mainly on the open source software follows the evolution strategy of NGN. This evolution includes a way from using SIP-based VoIP architecture to the IP Multimedia Subsystem (IMS) implementation of standardized NGN. The background of the standardization process is briefly presented as well. Our focus on application layer is motivated by its existence and similarity in various NGN implementations. In this chapter, we also discuss in detail three applications and services: multimedia streaming, security, and AAA service. This chapter shows the ability to build an NGN network for testing purposes. However, we prove that application layer, unified application access, and consequently convergence are main foundations of NGN.