文档介绍：华中科技大学
硕士学位论文
基于CTI技术的嵌入式交换机软件设计与实现
姓名:齐欣乐
申请学位级别:硕士
专业:通信与信息系统
指导教师:程文青
20080528
摘要
随着企业规模的逐步扩大,puter munication Integration)技术
的影响力已不局限于民用服务行业。在企业内部通信网中也需要交互式语音应答系统
能在电话呼叫接通后提示主叫方以按键方式进行通信,甚至将的呼入与 PSTN
来的呼叫进行统一排队,在必要时要求对线路进行优先级管理以保证重要信息的实时
传达。这些都需要计算机控制技术的支持。这类企业级设备的专用性强,加之它对可
靠性、可信度以及应用环境都有严苛的标准,嵌入式产品往往成为这一领域的首选。
嵌入式技术提供了一种灵活、高效和高性价比的解决方案。
本文通过对电话通信网体系结构、CTI 技术以及 PBX(Private Branch Exchange
电信专用交换机)等关键技术的研究,以现有的程控交换机软件技术和通信软件开发
方法为依托,提出了一种基于 CTI 技术的程控交换机软件的设计方法。包括有限状态
机的设计、系统内通信机制的选择和通信接口的实现。并以实际项目为例,针对相关
项目中的具体需求以及硬件平台的具体特性,实现了程序控制线路交换,包括对线路
的受限选择,实时分配;调度的网络控制等多项功能。
经过功能测试、压力测试等一系列规范化的测试,本文得到了相关测试数据。通
过测试数据客观地评估了系统的各项性能指标。并针对系统的瓶颈环节给与了优化。
达到了即定的系统要求。

关键字: 嵌入式; CTI; 交换机; VxWorks
I
Abstract
As enterprises have been expanding gradually, CTI technology has great influence in
not only civil service but also munication on enterprise grade as well. It is
necessary to adopt Interactive Voice Response (IVR) systems to remind calling party using
press-call system in the work. Also for the purpose of queuing up
all the ing calls from , PSTN, and if necessary, making some importance of
management on the circuit to ensure that important information can be delivered in time.
All of these are depend puter control technique. munications equipments on
enterprise grade is characterized by high reliability, great robustness, and exclusive use,
embedded operation system es the first choice of the development platform for it.
Embedded technique provides customers a flexible, high active and high cost performance.
Based on the research on the key technology such as munications
network architecture, CTI technology and PBX (Private Branch Exchange), this thesis
introduces a CTI technology based SPC exchange software design method. And the method
is also based on the advanced program controlled exchanger software we use today and the
communication software development method. The design includes the finite s