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Simões, J., Costa, R., Nunes, P., Lopes, R. & Mathy, L. (2006). An architecture for centralized SIP-based audio conferencing using application layer multicast. In PGNet 2006 - The 7th Annual PostGraduate Symposium on The Convergence of Telecommunications, Networking and Broadcasting. (pp. 383-387). Liverpool, UK: Liverpool John Moores University, School of Computing & Mathematical Sciences.

J. Simões et al.,  "An architecture for centralized SIP-based audio conferencing using application layer multicast", in PGNet 2006 - The 7th Annu. PostGraduate Symp. on The Convergence of Telecommunications, Networking and Broadcasting, Liverpool, UK, Liverpool John Moores University, School of Computing & Mathematical Sciences, 2006, pp. 383-387

@inproceedings{simões2006_1775221605670,
	author = "Simões, J. and Costa, R. and Nunes, P. and Lopes, R. and Mathy, L.",
	title = "An architecture for centralized SIP-based audio conferencing using application layer multicast",
	booktitle = "PGNet 2006 - The 7th Annual PostGraduate Symposium on The Convergence of Telecommunications, Networking and Broadcasting",
	year = "2006",
	editor = "",
	volume = "",
	number = "",
	series = "",
	pages = "383-387",
	publisher = "Liverpool John Moores University, School of Computing & Mathematical Sciences",
	address = "Liverpool, UK",
	organization = ""
}

TY  - CPAPER
TI  - An architecture for centralized SIP-based audio conferencing using application layer multicast
T2  - PGNet 2006 - The 7th Annual PostGraduate Symposium on The Convergence of Telecommunications, Networking and Broadcasting
AU  - Simões, J.
AU  - Costa, R.
AU  - Nunes, P.
AU  - Lopes, R.
AU  - Mathy, L.
PY  - 2006
SP  - 383-387
CY  - Liverpool, UK
AB  - Audio conferencing is an important aspect of Internet Telephony services. In this article, using a centralized conferencing architecture, we propose to employ application layer multicast for media distribution, by using “agents” responsible for the delivery of streaming media to end-clients, aiming at reducing the traffic in the network and the server workload. In this model, we use the concepts of active client, which exchanges media directly with the server, and passive client, which is limited to receive media from its agent. In our implementation we use the Real Time Protocol (RTP) for data transmission and the Session Initiation Protocol (SIP) for signaling, hence making it compatible with most existing state-of- the-art hardware and software.
ER  -