Beyond 3G video mobile conversational services: an overview of 3G-324M based messaging and streaming

3G-324M is a 3/sup rd/ Generation Partnership Project (3GPP) umbrella standard for wireless video communications, which was created to satisfy the stringent requirements of real-time, low-delay interactive conversational video services. However it is, in practice, employed today in 3G networks to enable also a variety of multimedia services including messaging and streaming. The unification of this variety of services under the same umbrella standard has significance for the design of the supporting architectures and the applications that run such services. In this paper we discuss the current limitations of 3G-324M in supporting streaming and messaging services and propose a set of requirements that imply some extensions and clarifications of the standard to better support them.