Peer-to-peer internet telephony using SIP

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Peer-to-peer internet telephony using SIP
P2P systems inherently have high scalability, robustness and fault tolerance because there is no centralized server and the network self-organizes itself. This is achieved at the cost of higher latency for locating the resources of interest in the P2P overlay network. Internet telephony can be viewed as an application of P2P architecture where the participants form a self-organizing P2P overlay network to locate and communicate with other participants. We propose a pure P2P architecture for the Session Initiation Protocol (SIP)-based IP telephony systems. Our P2PSIP architecture supports basic user registration and call setup as well as advanced services such as offline message delivery, voice/video mails and multi-party conferencing. We also provide an overview of practical challenges for P2P-SIP such as firewall, Network Address Translator (NAT) traversal and security.
Kundan Singh, Henning Schulzrinne
Added 28 Jun 2010
Updated 28 Jun 2010
Type Conference
Year 2005
Authors Kundan Singh, Henning Schulzrinne
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