Open source development tools for IMS research

Abstract

The 3GPP IMS is a next generation network architecture aimed at bringing the features and rich services of the Internet to the telephony world. Traditionally telephony products are developed by large companies with access to the proprietary solutions required for PSTN products. However, the shift to a packet-switched architecture and open Internet protocols has increased the developer base to include the huge community of web-developers.Consequently there are currently several open source software projects that aim to provide proof-of-concept implementations and research tools for promoting the development and adoption of IMS technologies. This work investigates the tools created by four open source IMS projects and incorporates these tools into a practical IMS test-bed framework. Evaluations are performed that demonstrate the capabilities and limitations of these tools in providing rich services to IMS users.

E-Learning: Virtual classrooms as an added learning platform

“…The UCT IMS Client [73] was used as the access terminal to the virtual classroom application server. System requirements and installation instructions may be found at:…”

BIQINI – A Flow-Based QoS Enforcement Architecture for NGN Services

“…In this paper we argue that BIQINI provides a clear advancement compared to the current state of the art, most notably the open source Policy and Charging Control Framework (PCC) published by a group of the University of Capetown (UCT) [9] [10] in 2007. In contrast to BIQINI, the UCT PCC operation relies on stateless gate opening and closing, moreover its architectural framework is relatively limited with respect to scalability, extensibility and active link capacity management.…”