A study of implementation open IMS platform setup- experiences of an IMS testbed / Nurul Izzati Aslaman

IP Multimedia Subsystem (IMS) was introduced by the Third Generation Partnership Project (3GPP) to enable 3G mobile systems to provide ubiquitous cellular access to all the services that the Internet provides, with improved Quality of Service (QoS). As such a testbed is quite complex by its very nature, Fraunhofcr Institute (FOKUS) known as a leading research institute in the field of open communication systems, has coined in addition the notion of technology focused "playgrounds". One of these playgrounds is the "Open IMS PIayground@FOKUS".This paper introduces the implementation of OpcnIMS, and provides an overview of the "OpcnIMS @ FOKUS". The objective of this project is to outline and explain of procedures taken in setting up IMS Core network using OpenlMS platform by FOKUS. The OpcnIMS is created for research and application testing purposes by which it is a lightweight version of IMS components such as P-CSCF, I-CSCF, S-CSCF, HSS etcAs a result, by using Open IMS platform setup, user registration and call between IMS Client are successfully connected.