基于SIP的实时网络传真的研究和设计

Research and Design of Real Time Network Fax based on SIP

实时网络传真将传统PSTN传真引入到互联网上进行传输,充分利用了互联网的费用低廉的优点,逐渐被广大用户所喜爱。笔者结合嵌入式技术和基于SIP的网络传真通信技术,实现了在嵌入式平台下基于PJSIP协议的实时网络传真(FOIP)。以AT91SAM9263主处理器为硬件平台,构建嵌入式Linux系统平台,设计了实时网络传真的硬件和软件平台。目前,这种实时网络传真方案已被应用到实际产品中。研究和实践表明,该方案具备良好的性能,适用于一些特定行业和领域。

Real time network fax will be introduced to the traditional PSTN fax transmission on the Internet,making full use of the advantages of low-cost Internet,gradually by the majority of users.In this paper,based on the embedded technology and SIP based network fax communication technology,the real-time network fax(FOIP)based on PJSIP protocol is implemented in embedded platform.The hardware platform of the embedded Linux system is built based on the AT91SAM9263 host processor,and the hardware and software platform of real-time network fax is designed.At present,this real-time network fax program has been applied to the actual product.Research and practice show that the scheme has good performance and is suitable for some specific industries and fields.