Session Initiation Protocol (SIP) is a key technology in the Internettelephony or Voice-over- IP (VoIP), also it is an important signaling technology in the nextgeneration multimedia communications. Based on the compa...Session Initiation Protocol (SIP) is a key technology in the Internettelephony or Voice-over- IP (VoIP), also it is an important signaling technology in the nextgeneration multimedia communications. Based on the comparison between SIP and H. 323 technology,this paper concludes the advantages of SIP. Then grounded on the major components and theirinteraction, it analyzes the mechanism and features of the Internet telephony based on SIP. Finally,it discusses the disadvantages of SIP and provides the emphasis of future work.展开更多
The brief description and comparison are given to the following two signaling protocol standards that are currently used in Internet: ITU T Recommendation H .323 and IETF Session Initiation Protocol ( SIP...The brief description and comparison are given to the following two signaling protocol standards that are currently used in Internet: ITU T Recommendation H .323 and IETF Session Initiation Protocol ( SIP ). After the introduction to the latest Distributed Gateway ( DG ) architecture and its internal protocol Media Gateway Control Protocol ( MGCP ), we describe a framework for DG interworking with H.323/SIP . Other topics, such as address translation, relocation of signaling transport protocol architecture and adding components to DG for interworking with H.323/SIP , are also addressed.展开更多
文摘Session Initiation Protocol (SIP) is a key technology in the Internettelephony or Voice-over- IP (VoIP), also it is an important signaling technology in the nextgeneration multimedia communications. Based on the comparison between SIP and H. 323 technology,this paper concludes the advantages of SIP. Then grounded on the major components and theirinteraction, it analyzes the mechanism and features of the Internet telephony based on SIP. Finally,it discusses the disadvantages of SIP and provides the emphasis of future work.
文摘The brief description and comparison are given to the following two signaling protocol standards that are currently used in Internet: ITU T Recommendation H .323 and IETF Session Initiation Protocol ( SIP ). After the introduction to the latest Distributed Gateway ( DG ) architecture and its internal protocol Media Gateway Control Protocol ( MGCP ), we describe a framework for DG interworking with H.323/SIP . Other topics, such as address translation, relocation of signaling transport protocol architecture and adding components to DG for interworking with H.323/SIP , are also addressed.
