为了在矿难发生时仍能进行可靠的通信,将无线Mesh网络技术和基于IP语音技术(VoIP)结合起来设计了煤矿井下语音通信系统。整个系统主要基于C#进行软件开发,并且选择基于Asterisk的IP02构建了系统语音服务器IPPBX,结合该服务器设计并实现了终端管理、群体呼叫、电话会议、语音菜单,以及语音邮箱等多种语音通信功能。在实验室环境下来模拟煤矿井下巷道,并对无线语音通信系统进行了实际测试。测试和分析表明所开发的无线语音通信系统的通信质量良好,实现了所设计的语音通信功能。 In order to ensure reliable communication even in the event of a mine disaster, a combination of wireless Mesh network technology and Voice over Internet Protocol (VoIP) technology was designed to design a coal mine voice communication system. The whole system is mainly based on C # for software development. IPPBX, a system voice server based on Asterisk’s IP02, is selected. Combined with this server, many voice communication functions such as terminal management, group call, conference call, voice menu and voicemail are designed and implemented . In the laboratory environment to simulate underground mine roadway, and wireless voice communication system for the actual test. The test and analysis show that the communication quality of the developed wireless voice communication system is good and the designed voice communication function is realized.