摘要
针对目前网络技术和多媒体技术的发展,以TCP/IP协议为基础,多种应用层协议为依托,提出一种基于分组交换技术来实现语音传输业务的一种技术—VOIP,并实现终端设计。系统采用dspIC33FJ256GP710芯片及WM8510编解码芯片,在Microchip的TCP/IP协议栈的基础上进行应用开发。阐述了系统的总体设计,终端的硬件与软件设计。实验测试表明,该VOIP系统的终端,通话质量可靠、实时性好,功耗低。
For the current development of network technology and multimedia technology,this paper proposes a method based on packet switching for realizing VOIP and the terminal design as a result.The system is developed on the basis of Microchip’s TCP/IP protocol stack by using dspIC33FJ256GP710 and WM8510 chip for coding and decoding.The overall design of the system,the hardware and software designed for the terminal are presented,and the testing results indicate that the VOIP system terminal is reliable in communication,and of real–time performance and low-power consumption.
出处
《通信技术》
2011年第4期140-143,共4页
Communications Technology
