An Application of VoIP Communication on Embedded System
Spurred by the remarkable development of VoIP technology, applications of real-time voice communication has come into widespread use over the Internet. However, their over reliance on PC environment restricts the applying fields of most VoIP software, and embedded VoIP is one of these blind spots. The VoIP application in this paper sets the hardware foundation on ARM9 embedded platform, adopts SIP and RTP as the transmission protocol and employs CELP compression algorithms to ensure the low-latency and highquality communication. In addition, Linux operating system and ALSA device driver are used to meet the needs of cost control and sound effects. Viewed from the experimental results, the VoIP system proves to be successful in both its real time voice communication and overall capacity.
VoIP SIP RTP embedded system
Wenbo Zhai Jian Wang
School of Computer Science and Engineering Dalian University of Technology Dalian, China
国际会议
太原
英文
619-623
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）