Welcome to the CoSIP Project
Cooperative SIP (CoSIP) is a project that aims to improve the resilience of Voice over IP (IP) networks. VoIP has been a promising technology for several years. Although it has become very popular, there are still several issues, such as security, reliability and emergency calls which are slowing down the integration of VoIP.
CoSIP benefits from the properties of Peer-to-Peer, such as data replication for redundancy, autonomic recovery from local link failures and scalability. However, unlike the P2PSIP approach, CoSIP is an approach where both the SIP server and a Distributed Hash Table (DHT) cooperate together in order to resolve requests from SIP UAs. Therefore, CoSIP benefits from the advantages of both server-based and P2P-based SIP networking and thus, enables improving the performance, reliability, survivability and security of SIP networks. It is more likely to survive catastrophic network failures than client/server-based SIP networks and provides better security than P2PSIP networks.
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| SIP UA Registration with CoSIP | Session Establishment with CoSIP |
Enjoy!
The CoSIP Team
Starting Points
Acknowledgements
- The CoSIP project is running at the Technische Universität München (TUM).
- CoSIP is partially funded by the European Commission in the context of the Research Framework Program Seven (FP7) project ResumeNet(Grant Agreement No. 224619).
- CoSIP is partially funded by the German Federal Ministry of Education and Research (Bundesministerium für Bildung und Forschung: BMBF) in the context of the AUTHONE project.
For a complete list of local wiki pages, see TitleIndex.

