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Wireless VoIP: Opportunities and Challenges

  • Jin Yang
  • Ioannis Kriaras
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1748)

Abstract

Next generation wireless networks are going to use IP capable mobile terminals and support both voice/multimedia and data services. VoIP is a promising technology allowing a converged core network for all services, and provides a service platform for easier and quicker service creation. Application of VoIP in wireless networks, however, is not so straightforward as people may expect. Among other issues, mobility support is perhaps the most challenging one. The different levels of mobility support (terminal, personal and service mobility) highlight the gap between the existing VoIP framework, which is so far focusing on fixed networks, and the requirements in a wireless environment. After analyzing the existing solutions/proposals for this problem, a framework is proposed in which the mobility-related services are decomposed into several levels so that mobility support is made available to many applications. This layered approach would help to lead to a mobility enabled wireless IP infrastructure in which voice service is just an application.

Keywords

Session Initiation Protocol Mobile Terminal Home Agent Mobility Support Visitor Location Register 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Jin Yang
    • 1
  • Ioannis Kriaras
    • 1
  1. 1.UMTS Advanced DevelopmentLucent TechnologiesSwindonUK

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