Interoperability of IP multimedia subsystems: The NetLab approach

Abstract

Standardization bodies have spent lots of efforts and have extensively defined IP Multimedia Subsystem interfaces. While Telcos have started its deployment, IMS-based applications boosting user needs are still to come. Such applications must not suffer from interoperability issues caused by different vendors and different administrative domains. NetLab project aims at exploring such interoperability issues by interconnecting together testbeds at three different countries. Use cases will be defined to find out about interoperability, and also to search for a user appealing application in collaboration with the LivingLabs community. This paper introduces the project vision on the architectural, security, QoS, and interoperability issues, together with new services illustrating the interconnection of testbeds.