摘要
集群系统组呼要求交换机具备大的汇接交换容量,因此提出了组呼汇接交换的几种方案并进行了分析比较。其中,IP软交换和IP组播技术应用改善了大容量汇接交换的话音质量,降低了成本,提高了网络带宽利用率,是下一代集群系统交换技术发展的必然趋势。同时也论述了利用IP组播实现集群组呼交换需要的协议和对IP网络条件的要求。
Group call switch in trunking system needs a high tandem capacity, so several methods of group call switching will be analyzed and compared. The applications of IP soft switch and IP group multicast techniques improve the voice quality after switching, decrease the cost, and increase the usage ratio of network bandwidth. It will be the best choice for soft switch in next generation of trunking system. The necessary protocols and condition of IP network are also discussed according to the special character of trunking group call switch.
出处
《电子器件》
CAS
2005年第2期442-445,共4页
Chinese Journal of Electron Devices
关键词
集群组呼交换
软交换
IP组播
group call switching in trunking system
soft switch
IP group multicast
