Today, SIP is a protocol par Excellence in the field of communication over Internet. But, the fact that it belongs to the application layer constitutes a weakness vis-
— Always-on applications, such as push email and voice-over-IP, are characterized by the need to be constantly reachable for incoming communications. In the presence of stateful ...
Skype is a peer-to-peer VoIP client developed by KaZaa in 2003. Skype claims that it can work almost seamlessly across NATs and firewalls and has better voice quality than the MSN...
Skype is a popular peer-to-peer (P2P) voice over IP (VoIP) application evolving quickly since its launch in 2003. However, the ability to traverse network address translation (NAT...
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 ...