No abstract

Service providers face new challenges in designing and managing voice over IP (VoIP) telephone network (PSTN) segment assumes a significant role. In this paper, we describe mechanisms for efficient, reliable, and scalable operation of hybrid VoIP and circuit-switched networks. Specifically, we make use of the emerging IP Multimedia Subsystem (IMS) architecture to enable admission control, routing, and quality of service (QoS) assurance for VoIP-to-PSTN interoperation.

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Content distribution networks are experiencing tremendous growth, in terms ofprovisioning and guaranteeing a very high degree of service quality (with respect to availability or download time), however, at very high network costs. On the other hand, modern peer-to-peer (P2P) networks emerged as cost-effective alternatives to client/server solutions, and BitTorrent*-like file swarming techniques

No abstract