(In the Internet communication at that time, P2P technology and SIP protocol received much attention. This article introduces the P2P architecture into the SIP-based multimedia communication system, and proposes a SIP-based P2P multimedia communication system. The system turns the SIP multimedia communication system, which is configured and controlled by convergent protection, into a distributed system, and overcomes the problems of scalability and single node failure caused by the convergent structure.)
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