Towards a converged messaging service

This paper describes the architecture of a Converged Messaging system developed within the COMET project [1]. The Converged Messaging framework enables message exchange between new and existing message domains like SMS, MMS, SIP, voicemail and videomail, anytime and anyplace, irrespective of network technology or device used. Two main topics are discussed. First, the paper explains the principles and characteristics of a novel, intuitive and device-independent user interface specifically designed and implemented for handling all messages, regardless of their origin, size and content. Second, the paper elaborates on the IMSbased quality-of-service system architecture that enhances end-to-end quality of the rich multimedia messaging service across multiple, heterogeneous networks. The objective of the proposed framework is to facilitate network operators tuning of their messaging service quality to achieve their operational objectives on the one hand, and to maximize user experience on the other