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Performance Enhancement of SIP- based VoIP Server
Chi-Jung Huang, Li-Te Shen, and Shaw-Hwa Hwang Department of Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan, ROC
Abstract - The performance improvement on SIP-based VoIP server is given in this paper. The signaling server "SIP Proxy" and media streaming server "RTP-Relay" are employed. Firstly, the performance of VoIP server is analyzed and evaluated in detail. Then the sophistic method is employed to improve the performance of VoIP server. In the analysis results of "SIP Proxy", the CPU time for the registration and call-setup sessions need 3.241 ms and 7.985 ms respectively. Moreover, in the "RTP-Relay" system, when the packet size from 1 to 32 bytes, the maximum throughput of packet is about 82,000 and 16,000 per second for UDP and TCP respectively. The large the packet, the less throughput is founded. In the improved method, three methods are employed to improve the performance. The capacity by 31 times is achieved. The ...