Chapter 1?A Telephony Revolution 一場(chǎng)電話系統(tǒng)的革命

Asterisk and VoIP: Bridging the Gap Between Traditional and Network Telephony? 彌合傳統(tǒng)電話與網(wǎng)絡(luò)電話之間的差距

Massive Change Requires Flexible Technology? 大規(guī)模變革需要靈活的技術(shù)

Asterisk: The Hacker’s PBX 黑客級(jí)別的PBX

Asterisk: The Professional’s PBX 專業(yè)級(jí)別的PBX

The Asterisk Community Asterisk社區(qū)

The Business Case 商業(yè)案例

Conclusion 結(jié)論

Chapter 2?Asterisk Architecture Asterisk架構(gòu)

Modules 模塊化

File Structure 文件結(jié)構(gòu)

The Dialplan 撥號(hào)計(jì)劃

Hardware 硬件

Asterisk Versioning Asterisk 版本

Conclusion 結(jié)論

Chapter 3?Installing Asterisk 安裝Asterisk

Installation Cheat Sheet 安裝備忘錄

Distribution Installation 發(fā)行版安裝

Software Dependencies 軟件依賴

Downloading What You Need 下載你需要的

How to Install It 怎么去安裝？

Base Configuration 基本配置

Updating Asterisk 更新Asterisk

Common Issues 常見問題

Upgrading Asterisk 升級(jí)Asterisk

Conclusion結(jié)論

Chapter 4?Initial Configuration Tasks 初始化配置任務(wù)

asterisk.conf

modules.conf

indications.conf

musiconhold.conf

Additional Configuration Files 額外的配置文件

Conclusion結(jié)論

Chapter 5?User Device Configuration用戶終端設(shè)備的配置

Telephone Naming Concepts電話命名概念

Hardphones, Softphones, and ATAs硬件電話、軟電話和ATAs

Configuring Asterisk配置Asterisk

Digium Phones with Asterisk Digium電話

Loading Your New Channel Configurations加載新的頻道配置

Testing to Ensure Your Devices Have Registered測(cè)試確保你的設(shè)備已經(jīng)注冊(cè)成功

Analog Phones模擬電話

A Basic Dialplan to Test Your Devices用基本的撥號(hào)計(jì)劃測(cè)試你的終端設(shè)備

Under the Hood: Your First Call在引擎蓋下你的第一通電話

Conclusion結(jié)論

Chapter 6?Dialplan Basics基本的撥號(hào)計(jì)劃

Dialplan Syntax撥號(hào)計(jì)劃的語法

A Simple Dialplan一個(gè)簡(jiǎn)單的撥號(hào)計(jì)劃

Building an Interactive Dialplan創(chuàng)建一個(gè)交互式的撥號(hào)計(jì)劃

Conclusion結(jié)論

Chapter 7?Outside Connectivity連接外界

The Basics of Trunking基本的中繼線

Fundamental Dialplan for Outside Connectivity連接外界的基本撥號(hào)計(jì)劃

PSTN Circuits PSTN電路

VoIP

Emergency Dialing緊急呼叫

Conclusion結(jié)論

Chapter 8?Voicemail語音信箱

Comedian Mail滑稽的郵箱

Dialplan Integration撥號(hào)計(jì)劃集成

Storage Backends后臺(tái)存儲(chǔ)

Using Asterisk as a Standalone Voicemail Server將Asterisk打造成一個(gè)獨(dú)立的語音信箱系統(tǒng)

Database Integration數(shù)據(jù)庫集成

Conclusion結(jié)論

Chapter 9?Internationalization國(guó)際化

Devices External to the Asterisk Server終端設(shè)備連接Asterisk服務(wù)

PSTN Connectivity, DAHDI, Digium Cards, and Analog Phones連接PSTN,DAHDI，Digium板卡和模擬電話

Asterisk

Conclusion—Easy Reference Cheat Sheet

Chapter 10?Deeper into the Dialplan深入理解撥號(hào)計(jì)劃

Expressions and Variable Manipulation正則表達(dá)式與通道變量的操作

Dialplan Functions撥號(hào)計(jì)劃函數(shù)

Conditional Branching條件分支

Macros

GoSub

Local Channels本地當(dāng)前通道

Using the Asterisk Database (AstDB)使用AstDB數(shù)據(jù)庫

Handy Asterisk Features方便的Asteris功能

Conclusion結(jié)論

Chapter 11?Parking, Paging, and Conferencing停泊，暫停與會(huì)議

features.conf

Overhead and “Underchin” Paging (a.k.a. Public Address)

Advanced Conferencing高級(jí)會(huì)議功能

Conclusion結(jié)論

Chapter 12?Internet Call Routing呼叫路由

DNS and SIP URIs

ENUM and E.164

ISN, ITAD, and freenum.org

Security and Identity安全與身份

Conclusion結(jié)論

Chapter 13?Automatic Call Distribution (ACD) Queues ACD隊(duì)列

Creating a Simple ACD Queue

Queue Members

The queues.conf File

The agents.conf File

Advanced Queues

Queue Statistics: The queue_log File

Conclusion

Chapter 14?Device States

Device States

Extension States

SIP Presence

Using Custom Device States

Distributed Device States

Shared Line Appearances

Creating a Callback Service

Conclusion

Chapter 15?The Automated Attendant

An Auto Attendant Is Not an IVR

Designing Your Auto Attendant

Building Your Auto Attendant

Conclusion

Chapter 16?Relational Database Integration

Installing and Configuring PostgreSQL and MySQL

Installing and Configuring ODBC

Managing Databases

Powering Your Dialplan with func_odbc

A Gentle Introduction to func_odbc

Getting Funky with func_odbc: Hot-Desking

Using Realtime

Storing Call Detail Records (CDR)

ODBC Voicemail Message Storage

Database Integration of ACD Queues

Conclusion

Chapter 17?Interactive Voice Response

What Is IVR?

Components of an IVR

IVR Design Considerations

Asterisk Modules for Building IVRs

A Simple IVR Using CURL

A Prompt-Recording Application

Speech Recognition and Text-to-Speech

Conclusion

Chapter 18?External Services

Calendar Integration

Voicemail IMAP Integration

Using XMPP (Jabber) with Asterisk

Out-of-Band Messaging (Messaging Infrastructure)

LDAP Integration

Text-to-Speech Utilities

Conclusion

Chapter 19?Fax

What Is a Fax?

Ways to Handle Faxes in Asterisk

spandsp

Digium Fax For Asterisk

Incoming Fax Handling

Outgoing Fax Handling

Fax Pass-Through

Conclusion

Chapter 20?Asterisk Manager Interface (AMI)

Quick Start

Configuration

Protocol Overview

Call Files

Example Usage

Development Frameworks

Interesting Applications

Conclusion

Chapter 21?Asterisk Gateway Interface (AGI)

Quick Start

AGI Variants

AGI Communication Overview

Example: Account Database Access

Development Frameworks

Conclusion

Chapter 22?Clustering

Traditional PBXs

Hybrid Systems

Pure Asterisk, Nondistributed

Asterisk and Database Integration

Asterisk and Distributed Device States

Multiple Queues, Multiple Sites

Conclusion

Chapter 23?Distributed Universal Number Discovery (DUNDi)

How Does DUNDi Work?

The dundi.conf File

Configuring Asterisk for Use with DUNDi

Conclusion

Chapter 24?System Monitoring and Logging

logger.conf

Call Detail Records

CEL (Channel Event Logging)

SNMP

Conclusion

Chapter 25?Web Interfaces

Flash Operator Panel

Queue Status and Reporting

Call Detail Records

A2Billing

Conclusion

Chapter 26?Security

Scanning for Valid Accounts

Authentication Weaknesses

Fail2ban

Encrypted Media

Dialplan Vulnerabilities

Securing Asterisk Network APIs

IAX2 Denial of Service

Other Risk Mitigation

CLI Permissions

Resources

Conclusion—A Better Idiot

Chapter 27?Asterisk: A Future for Telephony

The Problems with Traditional Telephony

Paradigm Shift

The Promise of Open Source Telephony

The Future of Asterisk

Appendix?Understanding Telephony

Analog Telephony

Digital Telephony

The Digital Circuit-Switched Telephone Network

Packet-Switched Networks

Conclusion

Appendix?Protocols for VoIP

The Need for VoIP Protocols

VoIP Protocols

Codecs

Quality of Service

Echo

Asterisk and VoIP

VoIP Security

Conclusion

Appendix?Preparing a System for Asterisk

Server Hardware Selection

Environment

Telephony Hardware

Types of Phones

Linux Considerations

Conclusion

Colophon