目录
第一章、企业通信发展的趋势与方向.............................................................................2
1.1 企业通信的统一趋势和演变...................................................................................2
1.2 相比于传统的通信技术和手段，统一通信的优势：...........................................3
1.2.1
架构优势：
........................................................................................................3
1.2.2
部署方式的优势
................................................................................................5
1.2.3
终端应用的优势
................................................................................................6
1.3 Cisco 的建议.............................................................................................................8
1.4 Cisco--企业通信的创新者和领导者.......................................................................9
第二章、企业统一通信系统的需求及分析...................................................................14
2.1 企业通信的分布和实现.........................................................................................14
2.2 典型企业语音通信平台的改造.............................................................................15
2.3 建议的改造方案和步骤：.....................................................................................16
2.3.1
单点系统改造为基于
IP
网络的统一通信平台：
........................................16
2.3.2
多点系统改造为基于
IP
网络的统一通信平台：
........................................17
2.3.3
将传统的模拟终端改造成基于
IP
的智能终端：
........................................18
第三章、企业统一通信系统方案建议...........................................................................20
3.1 系统总体架构和部署.............................................................................................20
3.2 系统可靠性设计.....................................................................................................22
3.2.1
高可靠数据网络架构设计
..............................................................................22
3.2.2
通信服务器层面
..............................................................................................24
3.2.3
远端网关本地存活功能（
Cisco SRST
）
.......................................................26
3.3 丰富的 IP 电话应用...............................................................................................29
3.3.1 高分辨率的简体中文显示和操作提示..........................................................29
3.3.2 基于 SIP 的实施状态显示..............................................................................30
3.3.3 同后台 LDAP 数据的集成.............................................................................32
3.3.4 丰富的 XML 应用集成功能...........................................................................32
3.4 VT Advantage 视频电话解决方案........................................................................33
3.5 对传统模拟接口的处理和部署.............................................................................35
3.6 IP 电话的部署和对网络和 QoS 要求...................................................................36
第四章、思科统一通信平台主要组成...........................................................................39
3.1 Cisco IP 话机..........................................................................................................39
3.2 Cisco 语音网关接口模块......................................................................................66
