论文部分内容阅读
软交换的出现是话音网络走向开放的新型体系架构,它与信令网关和媒体网关一起,使提供业务的控制层面与媒体的承载层面相分离,以有效灵活地提供业务,是新兴运营者进入话音市场新的技术手段,也是传统话音网络向分组话音演进的方式,具有广阔的发展前景。新一代话音网产生的背景目前电信业务发展迅猛,其特点是:(1)新业务层出不穷,数据业务快速发展,数据业务量迅速膨胀。在一些经济发达国家,数据业务量已经超过话音业务量。(2)新的语音压缩技术已经可以将话音信号压缩在低于64kbit/s的信道上传递。这种技术已经在IP电话、第二代GSM和第三代CDMA移动通信系统广泛应用。未来
The emergence of softswitch is a new type of voice network to open the architecture, which, together with the signaling gateway and the media gateway, to provide control of the business level and the media bearing level separation, in order to provide effective and flexible business, emerging operators to enter The new technical means in the voice market is also a way for the traditional voice network to evolve to packet voice and has broad prospects for development. Background of the new generation of voice network At present, the rapid development of telecommunications services, which is characterized by: (1) an endless stream of new business, the rapid development of data services, rapid expansion of data traffic. In some economically developed countries, data traffic has exceeded voice traffic. (2) The new voice compression technology can already compress the voice signal to be transmitted on the channel below 64 kbit / s. This technology has been widely used in IP phones, second generation GSM and third generation CDMA mobile communication systems. future