IP-PBX

One of the main advantages of an IP PBX is the fact that it employs converged data and voice networks.

用常规PBX时，话音和数据通信必须有两个分开的网络。

If the integration of the IP PBX and the NGN can be success, it will create a lot of value-added business, and truly meet customer needs.

如果IP PBX与NGN网络结合，可增加大量增值业务，真正满足用户需求。

Enterprise IP Telephone Network Principle Based on IP-PBX and Its Solution

基于IP-PBX的企业IP电话网原理及实现

Then, we explored the system and described the specifically implementation method of the IP-PBX communications systems and business applications platform.

然后，对该系统进行了开发实现，从IP-PBX通信系统和业务应用平台各功能模块的角度出发，详细地阐述了系统的实现方法。

Voice mail, Automated Attendant and Call Detail Recording Equipment are examples of PBX add-on devices.

PBX附加设备有语音邮件 、 自动话务员和呼叫细节录音设备.

Each call consumes a certain amount of network bandwidth, so the number of calls is limited by the amount of bandwidth that can flow between the IP PBX and the provider's equipment.

每个调用都会消耗一定量的网络带宽，所以电话的数量是有限的带宽，可以流动之间的IP PBX和供应商的设备的数量。

Therefore IP PBX system characteristic and its application technology are worth everybody conducting the research and the discussion.

为此IP PBX系统的特点及其应用技术值得大家进行研究及探讨。

The main content of this thesis is IP-PBX call routing system, which is in the control-layer of IP-PBX devices.

本文的研究对象是IP-PBX的呼叫路由系统，它位于IP-PBX设备的控制层，多种不同通信终端在呼叫路由系统的控制下实现互通。

After that, the whole scheme of IP-PBX system based on Asterisk and the implementation frame of its components are presented.

然后给出了基于Asterisk实现IP-PBX通信系统的原理和基本通信的实施方案；

Discussion of IP PBX Characteristic and Its Application Point

IP PBX的特点及其应用探析

User agents are typically phones ( POTS, mobile phones, soft phones, IP-PBX devices, and so on), but can be any SIP-enabled device.

用户代理一般是电话（POTS、移动电话、软件电话、IP-PBX设备，等等），但可以是任意的允许SIP的设备。

With the IP-PBX systems developing in the small-middle enterprises, the implement becomes simple.

随着IP-PBX系统在中小型公司中越来越普及，实现也越来越简单，成本的降低便成为普遍关注的重点。

The provider can also terminate PSTN numbers, and route incoming calls for those numbers back to the IP PBX over the SIP can also Trunk.

当一个呼叫从内部到外部电话放在号码，交换机发送必要的信息提供者的SIP中继谁建立了调用拨打的号码，并作为为调用中介行为。

IP-PBX is one of the hottest research directions in recent computer telecommunication integration domain. How to provide QoS guarantee becomes a key technique for real time communications in IP-PBX system.

IP PBX（IP专用交换机）系统是近年来计算机网与传统电话系统技术融合领域的研究热点，而如何在IP PBX系统中提供有QoS（服务质量）保证的实时通信能力成为一个关键技术。

The SIP Trunk provides a virtual SIP relay which is similar to the traditional PSTN relay to enable the direct interconnection between the internal IP-PBX of enterprises and the external INTERNET IP phone operators.

SIP Trunk提供了一种类似于传统PSTN中继的虚拟SIP中继来使企业IP-PBX与外部的INTERNET电话运营商之间通过IP进行直接互连。

Communication Infrastructure ( IP-PBX's, MS-LCS, Desktop Phones)

通信基础设施（IP-PBX的产品，MS-LCS，桌面电话）

The content of this thesis is research on traffic control and related issues of embedded IP-PBX.

本课题研究的内容是嵌入式IP-PBX中的网络流量控制相关问题研究。

The Research and Realization of Campus Call Center Based on IP-PBX System

基于IP-PBX系统的校园呼叫中心的研究与实现

At last, the author took part in the project of Nanchang Municipal Public Group Call Center, based on it, detailedly expounded the design and realize process of the Asterisk-Based IP-PBX System.

并以南昌市政公用集团客户呼叫中心整合系统工程作为项目依托，详细阐述了Asterisk平台下呼叫中心的设计实现过程。

Further more, we elaborated the open source Asterisk specifically, which has good flexibility and scalability. In order to achieve the service expansion of IP-PBX, we should open appropriate architecture and interface, load and configure some related plugins and modules.

另外，对开源的PBX软件包asterisk作了具体的阐述，它具有一定的灵活性和扩展性，通过开放相应的架构和接口，加载和配置相关的对应的插件和模块来实现IP-PBX业务的扩展。

This thesis performs functional test of the SIP IP-PBX which has the MSN channel, test results show SIP IP-PBX after increasing MSN channel can accomplish the connection of communication between SIP terminal and MSN client.

本文还对加载了MSN通道的SIP IP-PBX进行了功能测试，测试结果表明，增加MSN通道后的SIP IP-PBX可以完成SIP终端和MSN客户端之间通信的连接。

IP-PBX is one of the hottest research directions in recent computer telecommunication integration technology domain.

IP-PBX系统是近年来计算机网与传统电话系统技术融合领域的研究热点。

Finally, summarized this paper, and pointed out that call center based on IP-PBX system direction of further work.

最后，对论文的各项工作进行了总结，并指出了基于IP-PBX系统的呼叫中心的进一步工作方向。

Implementation Technology of Value-added Services in IP-PBX System

IP-PBX系统增值业务实现技术研究

Job Descriptions: 1. Responsible for information technology infrastructure related tasks, e . g . PC . LAN , PBX, sever 2.

工作描述: 1. 对信息科技系统内的各相关工作负责,举例来说PC、区域网络, PBX,服务器.

This paper uses the Asterisk software package to build the IP-PBX system on a computer. Using this IP-PBX system integrates with other software server to build the small-middle enterprise communication system.

本文采用开源的软件包-Asterisk，在一台计算机上来搭建了IP-PBX系统，同时对IP-PBX系统同其它软件服务器相融合来组建中小型公司的多种用途的通信系统。

Protocol/ transport technologies such as XML, HTTP, Java Telephone API, and SNMP may be used for IP-PBX communication based on the back end system.

协议/传输技术，例如XML，HTTP，Java Telephone API，以及SNMP，都会被应用于基于后端系统的IP-PBX通讯。

Research and Design of IP-PBX Call Routing System

IP-PBX呼叫路由体系的研究与设计

After a brief introduction of the SIP protocol, it analyzes the overall structure of IP-PBX system.

对SIP协议做了简单介绍之后，接着对IP-PBX的总体结构做了分析。