Abstract

A method for use in a multimedia conferencing arrangement to control multiple concurrent calls where each call comprises one or more channels. A first call among a first set of user stations and a second call among a second set of user stations are merged into a single call comprising a plurality of channels among at least three user stations from the first and second sets. The plurality of channels of the single, merged call corresponds to a combination of channels of the first and second calls and may include a signalling channel, a voice channel, and one data channel for each data channel of the first and second calls. The method is also applicable to calls including image or video channels.

Other References

• E. Brian Carne "Modern Telecommunication" pp. 44-47 1984
• J. J. Degan et al., "Fast Packet Technology for Future Switches", AT&T Technical Journal, vol. 68, No. 2, Mar./Apr. 1989, pp. 36-50
• S. Nojima et al., "High Speed Packet Switching Network for Multi-Media Information", Proceedings of IEEE 1986 Computer Networking Symposium, pp. 141-150
• K. Yukimatsu et al., "Multicast Communication Facilities in a High Speed Packet Switching Network", Proceedings of ICCC'86, pp. 276-281
• E. Arthurs et al., "The Architecture of a Multicast Broadband Packet Switch", Proceedings of IEEE INFOCOM'88, pp. 1-8
• K. Y. Eng et al., "Multicast and Broadcast Services in a Knockout Packet Switch", Proceedings of IEEE INFOCOM'88, pp. 29-34
• J. S. Turner, "Design of a Broadcast Packet Switching Network", IEEE Trans. on Communications, vol. 36, No. 6, 1988, pp. 734-743
• W. H. Leung et al., "A Set of Operating System Mechanisms to Support Multi-Media Applications", Proceedings of 1988 International Zurich Seminar on Digital Communications, Mar. 1988, pp. B4.1-B4.6
• A. Glafoor et al., "An Efficient Communication Structure for Distributed Commit Protocols", IEEE Journal on Selected Areas in Communications, vol. 7, No. 3, Apr. 1989, pp. 375-389
• S. E. Minzer et al., "New Directions in Signaling for Broadband ISDN", IEEE Communications Magazine, Feb. 1989, pp. 6-14
• L. Aguilar et al., "Architecture for a Multimedia Teleconferencing System", Proceedings ACM SIGCOMM'86 Symposium, Aug., 1986, pp. 126-136
• S. R. Ahuja et al., "The Rapport Multimedia Conferencing System", Proceedings of Conference on Office Information Systems, Mar. 1988, pp. 1-8
• H. Forsdick, "Explorations into Real-Time Multimedia Conferencing", Proceedings of the 2nd International Symposium on Computer Message Systems, IFIP, Sep., 1985, pp. 331-347
• K. A. Lantz, "An Experiment in Integrated Multimedia Conferencing", Proceedings of the Conference on Computer-Supported Cooperative Work'86, Dec. 1986, pp. 533-552
• A. Poggio et al., "CCWS: A Computer-Based, Multimedia Information System", Computer, Oct. 1985, pp. 92-10