Design on In-vehicle Voice Communication System based on VoIP

The of VoIP(Voice over IP) technology is studied,the technical principle of VoIP analyzed,and the advantage-and-disadvantage comparison of ITU-U'H.323 and IETF' SIP done.Based on these and in accordance with the development of In-vehicle voice communication system a design scheme based on VoIP(Voice over IP) is proposed.The system architecture,the reference design for voice integrated access equipment is given,thus providing a new thought for multi-service access application of in-vehicle voice communication system.