摘要： 讨论了支持网络融合和网络开放的软交换系统的特点，提出了一个层次化的软交换体系结构，包括协议适配子系统、呼叫控制子系统、业务适配子系统和OAM子系统。分析了层次化的呼叫控制模型、基于统一消息的协议适配方法和可扩展的Parlay API实现方案。测试结果表明了该系统能够满足国家标准规定的性能要求。

关键词: 网络融合, 网络开放, 软交换, 协议适配, 呼叫模型

Abstract: Characteristics of softsiwtch which supports network convergence and network openness are discussed, and a layered architecture of softswitch is proposed, which includes protocol adaptation subsystem, call control subsystem, service adaptation subsystem and OAM subsystem. Some implementation mechanisms are analyzed, including a layered call control model, a method for protocol adaptation based on unified messages and an extensible scenario for implementing Parlay API. Testing results show this system is satisfied to national standard in performance requirements.

Key words: Network convergence, Network openness, Softswitch, Protocol adaptation, Call model

中图分类号: 

• TP393.05