Distributed processing for the Load Minimization of an SIP Proxy Server

SIP 프록시 서버의 부하 최소화를 위한 분산 처리

  • 이영민 (서울벤처정보대학원대학교 임베디드시스템학과) ;
  • 노영섭 (서울벤처정보대학원대학교 임베디드시스템학과) ;
  • 조용갑 (서울벤처정보대학원대학교 임베디드시스템학과) ;
  • 오삼권 (호서대학교 컴퓨터공학부) ;
  • 황희융 (서울벤처정보대학원대학교 임베디드시스템학과)
  • Published : 2008.08.31


As internet telephony services based on Session initiation Protocol (SIP) enter the spotlight as marketable technology, many products based on SIPs have been developed and utilized for home and office telephony services. The call connection of an internet phone is classified into specific call connections and group call connections. Group call connections have a forking function which delivers the message to all of the group members. This function requires excessive message control for a call connection and creates heavy traffic in the network. In the internet cail system model. most of the call-setup messages are directed to the proxy server during a short time period. This heavy message load brings an unwanted delay in message processing and. as a result, call setup can not be made. To solve the delay problem, we simplified the analysis of the call-setup message in the proxy server, and processed the forking function distributed for the group call-setup message. In this thesis, a new system model to minimize the load is proposed and the subsequent implementation of this model demonstrates the performance improvement.


SIP;Proxy server;VoIP;Internet telephony;Embedded system


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