An architecture for a multimedia teleconferencing system
SIGCOMM '86 Proceedings of the ACM SIGCOMM conference on Communications architectures & protocols
The rapport multimedia conferencing system
COCS '88 Proceedings of the ACM SIGOIS and IEEECS TC-OA 1988 conference on Office information systems
PX: Supporting Voice in Workstations
Computer
An experiment in integrated multimedia conferencing
CSCW '86 Proceedings of the 1986 ACM conference on Computer-supported cooperative work
Hierarchical conferencing architectures for inter-group multimedia collaboration
COCS '91 Proceedings of the conference on Organizational computing systems
An architecture for multimedia connection management
ACM SIGCOMM Computer Communication Review
System support for computer mediated multimedia collaborations
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
Communications of the ACM
Control handling in real-time communication protocols
SIGCOMM '93 Conference proceedings on Communications architectures, protocols and applications
High-quality multimedia conferencing through a long-haul packet network
MULTIMEDIA '93 Proceedings of the first ACM international conference on Multimedia
SIGCOMM '95 Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Metropolitan Area Mobile Services to Support Virtual Groups
IEEE Transactions on Mobile Computing
Multimedia Systems: An Overview
IEEE MultiMedia
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The latest extension of the Etherphone project is described. It creates a powerful conferencing system that lets users control their participation in multiple conferences across multimedia networks. The emphasis is on the software mechanisms that support its new features: first, a Sparcstation facility called Phoenix that extends the Etherphone software architecture to permit more flexible conferencing and to control Sparcstation-based Ethernet audio transmission, and, second, the integration of the Phoenix capabilities with Macaw, the earlier video extensions. Also described is a multicast packet protocol for audio transmission, which reimplements and extends the earlier special-purpose protocols, adding per-channel volume control and full support for the extended conferencing modes.