基于Android平台的VoIP设计实现  

Design and Implementation of VoIP Based on Android Platform

作　　者：杜奇才 邓诚刚 刘荧[3] 林嘉宇 

机构地区：[1]特种作战学院,广州510500 [2]广东中科军民融合产业研究院,广州510070 [3]国防科学技术大学,长沙410073 [4]长沙芯洗数字科技有限公司,长沙410073

出　　处：《微处理机》2017年第2期41-44,共4页Microprocessors

基　　金：广东省科技装备动员项目<军用智能手机端到端保密通信系统>

摘　　要：随着移动通信技术和嵌入式系统的飞速发展,基于智能终端的VoIP在个人、商业组织和政府中的应用日趋广泛。在智能终端中,Android操作系统以其开放性和灵活性,深受广大用户和厂商的青睐,在全球市场已占据绝对优势地位。因此,基于Android平台设计实现VoIP系统,具有广泛的应用前景。介绍了PJSIP协议框架结构,分析了语音通信和即时消息收发流程,并以Android系统为运行平台,设计实现了VoIP系统。利用开源服务器Free Switch进行测试,该系统能够在不同版本的Android智能手机运行,并能够在3G/4G以及WIFI网络环境中进行稳定的语音通话与即时信息传输,结果表明该系统具有良好的功能性与稳定性。As the rapid development of the mobile communication and embedded systems,Voice over Internet Protocol（ VoIP） on smart mobile devices has become increasingly popular among individuals, business organizations and governments. For the smart mobile devices,the Android OS,which has been attracted by customers and manufactures due to its openness and flexibility,has occupied the absolute dominant position on the global market. So,it has wide market prospect to design and implement the VoIP based on Android platform. This paper introduces the architecture of PJSIP stack,analyzes the communication flow of voice and instant message, uses Android system as a running platform, and realizes the system of voice call in the Internet. Afte r testing this system through the open source server FreeSwitch, it can run on smart phones using different variations of Android, and also support stable voicecal and instant message transmission in 3G,4G and WIFI network. The result shows that it has good functionality and stability.

关 键 词：VOIP系统 ANDROID平台 PJSIP协议 智能手机 语音通信 即时消息 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]