软交换呼叫模型的研究与设计  

Research and Design of Call Model in SoftSwitch

作　　者：田战毅[1] 王芙蓉[1] 莫益军[1] 

机构地区：[1]华中科技大学电信系,湖北省武汉市430074

出　　处：《电信快报》2005年第1期31-35,共5页Telecommunications Information

摘　　要：呼叫模型是软交换设计的核心,软交换呼叫模型设计应体现网络融合及控制分离的特点。文中提出一种适合软交换特点的呼叫模型,该呼叫模型的设计借鉴并作了成熟的智能网呼叫模型改进,借用其连接模型和业务接口,同时增强媒体控制能力,使之与H.248/MEGACO媒体网关控制协议相配合,实现呼叫控制与媒体承载、业务逻辑与呼叫控制的分离。它支持多协议接入,满足开放式业务的需求,具有较好的灵活性和扩展性,可以较好地满足软交换的功能需求。Call Model is the core in the design of softswitch. The design of softswitch should fit the requirements of network combination and control separation. This article describes a call control model based on softswitch architecture. The design refers to and enhances the call control model of IN and its connect-view, and improves the ability of media control and cooperation with the H.248 / MEGACO protocol. The call-controlling model realizes the separation of call control and media control, and that of call control and service logic. The model that allows the accessing of multi-protocols can satisfy the need of open type services, have more flexibility and expandability, and can satisfy the needs of softswitch function.

关 键 词：呼叫模型 软交换 呼叫控制 H.248 媒体网关控制协议 智能网 业务接口 需求 借鉴 支持 

分 类 号：TN915[电子电信—通信与信息系统] TN919.8[电子电信—信息与通信工程]