浅析IMS固话综合虚拟网(CENTREX)的创建流程

Discussion on the Implement of IMS-CENTREX

综合虚拟网(CENTREX)是电信运营商为用户提供的一种成熟的集中交换业务,在市场上有着广泛的应用.IMS是IP多媒体子系统的简称,同时也是一种全新的多媒体业务形式,能够满足现在更新颖、更多样化的媒体业务需求.生产实际中,IMS网络正逐步替代下一代网络NGN,成为下一代交换核心网络的主要架构形式.充分利用IMS架构的协议开放性及业务扩展灵活性组建的CENTREX,能够满足用户多样化的需求.本文首先介绍了IMS固话综合虚拟网(CENTREX)的业务功能和性能特点,并通过具体实例,演示了在IMS上创建固网综合虚拟网CENTREX的方法和步骤.

CENTREX（CENTRal Exchange）is a mature centralized exchange service provided by telecom operators and has a wide range of applications. IP Multimedia Subsystem （IMS） is a new form of multimedia services network and can meet the new, more diversified multi-media business needs. In reality, IMS gradually replaces NGN, and becomes the main form of next generation switching core network. IMS network can also provide CENTREX service. The advantages of IMS, such as the openness of the framework and the flexibility of business expansion, are utilized to satisfy various needs of customers more flexibly. The principles and characters of the IMS-CENTREX service are introduced and the implement of CENTREX on the IMS network by some examples is demonstrated.