【摘要】 设计了基于IP电话终端卡的IP电话系统.在IP电话终端卡的支持下,计算机可连接普通电话,取代耳机和麦克风,实现了用户以传统方式进行PC-PC通话.实现了动态IP地址的获取,用户直接通过服务器分配的IP电话号码相互呼叫,使呼叫过程简洁方便.经在局域网和互联网测试表明:该系统对带宽要求低,话音质量良好,费用低廉,具有应用价值.更多还原

【Abstract】 This paper introduces the IP telephony system based on IP telephony terminal card.Under the IP telephony termination card support,the computer can be connected to common telephones,replacing the earphones and microphones,thus users can make PC-PC’s calls in traditional way.Even under the IP address dynamic allocation condition,the server can give every user a unique IP phone number and the user can call each other by this number.In this way,the dynamic allocation of IP address is achieved and it will be easier for users to call each other.This software has been tested in the local area network and internet.Results show that this system is more tolerant to the bandwidth,easy to operate,with good voice quality and low cost.更多还原