摘要： 为实现灵活、畅通、可靠的井下通信，设计一种基于嵌入式Linux的移动会话初始协议(SIP)通信终端。该终端利用SIP作为应用层协议，在流动会话过程中提供对语音连续性的支持。设计一种灵活高效的SIP协议栈，在嵌入式平台下结合无线局域网技术，实现井下实时语音通话功能。实验结果表明，该终端通话质量较好。

关键词: 嵌入式技术, 会话初始协议, 无线局域网, VoIP技术, 通信终端

Abstract: According to the current mine safety and actual needs, this paper introduces a design of mobile Session Initiation Protocol(SIP) communication terminal unit based on embedded Linux. The terminal uses SIP as application-layer protocol which provides the liquidity support for voice continuity during an ongoing session, and designs a flexible and efficient SIP protocol stack which implements in the embedded platform with wireless LAN technology to achieve real-time voice calls under-mine. Experimental results show that the terminal has good calls quality and a broad application and promotion aspects in improving underground communications and other functions.

Key words: embedded technology, Session Initiation Protocol(SIP), Wireless Local Area Network(WLAN), Voice over IP(VoIP) technology, communication terminal

中图分类号: 

• TP393