The Hardware Design And Implementation Of A VoIP Voice Terminal

Today, VoIP is considered more and more important in information network system. VoIP is not just a solution for voice communication, it can also be used in mixing voice, image and video. It is a kind of network communication technology which can support a variety of smart business. It is playing a pivotal role in the progress that IP Network replace the PSTN. VoIP terminal is an essential equipment in VoIP system.In this paper the author first gives a brief introduction of VoIP in looking back the develop history of this technology, discusses the research value and meanings of VoIP terminal, and introduces the key technology of VoIP. After that the article confirms the research direction by discussing the functions and capability of the product, and gives a design of VoIP voice terminal based on the SOC of AR1688. In the paragraph of the design and implementation, first is the introduction of the design of the electronic circuit, including the introduction of IC: AR1688, DM9003, the division of function blocks, and the whole blueprint. After that the article deals with the principle of PCB layout and the debugging tools of the system.This VoIP terminal has the advantages in terms of good performance, stability, low-costs, etc., can be used widely. And now there is a great market demand of this kind of VoIP terminal.