| PTD2112的FXS终端的研究 |
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| 引用本文： | 黄学达,章涤峰.PTD2112的FXS终端的研究[J].深圳信息职业技术学院学报,2006,4(4):52-55. |
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| 作者姓名： | 黄学达 章涤峰 |
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| 作者单位： | 重庆重邮信科股份有限公司3G 研究院，武汉工程大学电气信息工程学院 重庆 400065，湖北 武汉 430073 |
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| 摘 要： | IP电话设备主要采用H．323和MGCP协议实现,但是H．323和MGCP协议实现过程复杂,给实际使用造成很多的问题。本文提出一种采用PTD2112的FXS终端的实现方法,VoIP协议采用实现简单的SIP协议,同时也能够确保电话业务的服务质量,电话业务接口的技术性能指标满足相关规范要求。重点阐述了基于PTD2112的FXS终端的硬件与软件的设计方法。电话接口的性能测试结果表明,所提出的方案在因特网运行良好。
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| 关 键 词： | VoIP SIP FXS FXO |
| 文章编号： | 1672-6332（2006）04-0052-04 |
| 收稿时间： | 2006-11-17 |
| 修稿时间： | 2006年11月17 |
FXS terminal device based on PTD2112 |
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| HUANG Xueda, ZHANG Difeng.FXS terminal device based on PTD2112[J].Journal of Shenzhen Institute of Information Technology,2006,4(4):52-55. |
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| Authors: | HUANG Xueda ZHANG Difeng |
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| Abstract: | A Foreign Exchange Station (FXS) interface connects directly to a standard telephone,fax machine, or similar device and supplies ring,voltage,and dial tone.We developed IP (Internet Protocol) telephone devices according to H.323 prot~ol and MGCP protocol.They are very intricate for us to do,as resulted in a lot of problems. The paper puts forward a portable design scheme of FXS terminal devices on the basis of PTD2112,which may be implemented by using SIP (Session Initiation Protocol) protocols,and assures QoS (quality of service)of telephone operation,and telephone operation interface accorded with correlative criterion.How to design and implement the hardware and software of FXS terminal device on PTD2112 is described;Performance testing result of telephone interface indicates that the design runs all right on Internet. |
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| Keywords: | voice over IP (VoIP) Session Initiation Protocol (SIP) foreign exchange station (FXS) foreign exchange office (FXO) |
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