云端电话交换系统的设计与实现

Design and Implementation of Cloud Telephone Exchange System

在目前三网融合的潮流以及云计算时代的背景下,本系统使用现场可编程门阵列(FPGA)、对象存储(OSS)、关系型数据库服务(RDS)及内容分发网络(CDN)构建了一个完整的云端电话交换服务器.该电话交换服务器可以通过一个在世界各地都有极低访问延迟的数据库来确认交换规则并完成相应的话音交换.该设计使用了新兴网络技术,整套系统交换容量大、成本低,在未来有一定的发展空间.

Using field-programmable gate array （FPGA）, object storage service （OSS）, relational database service （RDS） and content delivery network （CDN）, this design builts a complete cloud telephone exchange server in the background of the current three network convergence and cloud computing era. It enables the telephone switching server to confirm the exchange rules and complete the corresponding voice exchange through a database with verylow access delay all over the world. The design uses new network technology and the whole system has a large exchange capacity and low cost. There is a certain space for further development in the future.