Voip Packet Communication System Design And Implementation

This thesis studies the design and implementation solutions for VoIP communication software module groups. To introdmze detailed de~lopment information, the paper involves numerous source code segments (and SDL diagrams, etc) and system-level essential design principles. Based on network data communication theories, packet-based voice communication system protocols, network communication software system architectures and software coding technologies, the studies focus on system analyring~ principle discussing and coding First, chapterl briefly describes the integral system From chapter 2 to chapter 41 examine II?, TCP and routing xutocok These chapters frame the first section. From chapter 5 to chapter 81 review RTP/RTCP, RSVP, RAS, call signaling jxutoool and media control rotocoL ~fl~se chapters ccmstnict die second section. The first section is flmdamental suppcirting jxutocol-family criaited and the second section is higher-law ~xotocol-fhaiily oriented The IP-related discwsioiu highlight die header functions, fragmenting and i~acsembling For TCP die cadinal put is for sliding ,~4ndo~i. he aiieial fraction hi the following chapter offmi engineeaing infcrmadon for dynamic routing In K~P/RICP zau, header definitions are proposed and convenient algorithms are devise~1 I cxmcisely illustrate the principles of RSVP. Several SDL diagrams are substantial for RAS and procedural optimization methods and coding pieces fonn the kernel division of call signaling ii抩tocoL Master-slave detennination and capability set negotiation absolutely label the media ccmtrol protocoL The thesis hichides about 60 pieces of drawings and tables and 1290 lines of C/C-H- source code.