Beethoven: architecture for media telephony

Anja Keskinarkaus; Timo Ohtonen; Jaakko J. Sauvola

doi:10.1117/12.368323

5 November 1999 Beethoven: architecture for media telephony

Anja Keskinarkaus, Timo Ohtonen, Jaakko J. Sauvola

Proceedings Volume 3842, Internet II: Quality of Service and Future Directions; (1999) https://doi.org/10.1117/12.368323
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

This paper presents a new architecture and techniques for media-based telephony over wireless/wireline IP networks, called `Beethoven'. The platform supports complex media transport and mobile conferencing for multi-user environments having a non-uniform access. New techniques are presented to provide advanced multimedia call management over different media types and their presentation. The routing and distribution of the media is rendered over the standards based protocol. Our approach offers a generic, distributed and object-oriented solution having interfaces, where signal processing and unified messaging algorithms are embedded as instances of core classes. The platform services are divided into `basic communication', `conferencing' and `media session'. The basic communication form platform core services and supports access from scalable user interface to network end-points. Conferencing services take care of media filter adaptation, conversion, error resiliency, multi-party connection and event signaling, while the media session services offer resources for application-level communication between the terminals. The platform allows flexible attachment of any number of plug-in modules, and thus we use it as a test bench for multiparty/multi-point conferencing and as an evaluation bench for signal coding algorithms. In tests, our architecture showed the ability to easily be scaled from simple voice terminal to complex multi-user conference sharing virtual data.

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Anja Keskinarkaus, Timo Ohtonen, and Jaakko J. Sauvola "Beethoven: architecture for media telephony", Proc. SPIE 3842, Internet II: Quality of Service and Future Directions, (5 November 1999); https://doi.org/10.1117/12.368323

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KEYWORDS

Multimedia

Digital watermarking

Human-machine interfaces

Data hiding

Internet

Telecommunications

Video

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