Table of Contents

Asterisk: The Future of Telephony
By Leif  Madsen, Jared  Smith, Jim  Van Meggelen
...............................................
Publisher: O'Reilly
Pub Date: September 2005
ISBN: 0-596-00962-3
Pages: 404

Table of Contents    Index

		Copyright
		Foreword
		Preface
			Audience
			Organization
			Software
			Conventions Used in This Book
			Using Code Examples
			Safari Enabled
			How to Contact Us
			Acknowledgments
		Chapter 1.   A Telephony Revolution
			Section 1.1.   VoIP: Bridging the Gap Between Traditional Telephony and Network Telephony
			Section 1.2.   Massive Change Requires Flexible Technology
			Section 1.3.   Asterisk: The Hacker's PBX
			Section 1.4.   Asterisk: The Professional's PBX
			Section 1.5.   The Asterisk Community
			Section 1.6.   The Business Case
			Section 1.7.   This Book
		Chapter 2.   Preparing a System for Asterisk
			Section 2.1.   Server Hardware Selection
			Section 2.2.   Environment
			Section 2.3.   Telephony Hardware
			Section 2.4.   Types of Phone
			Section 2.5.   Linux Considerations
			Section 2.6.   Conclusion
		Chapter 3.   Installing Asterisk
			Section 3.1.   What Packages Do I Need?
			Section 3.2.   Obtaining the Source Code
			Section 3.3.   Compiling Zaptel
			Section 3.4.   Compiling libpri
			Section 3.5.   Compiling Asterisk
			Section 3.6.   Installing Additional Prompts
			Section 3.7.   Updating Your Source Code
			Section 3.8.   Common Compiling Issues
			Section 3.9.   Loading Zaptel Modules
			Section 3.10.   Loading libpri
			Section 3.11.   Loading Asterisk
			Section 3.12.   Directories Used by Asterisk
			Section 3.13.   Conclusion
		Chapter 4.   Initial Configuration of Asterisk
			Section 4.1.   What Do I Really Need?
			Section 4.2.   Working with Interface Configuration Files
			Section 4.3.   FXO and FXS Channels
			Section 4.4.   Configuring an FXO Channel
			Section 4.5.   Configuring an FXS Channel
			Section 4.6.   Configuring SIP
			Section 4.7.   Configuring Inbound IAX Connections
			Section 4.8.   Configuring Outbound IAX Connections
			Section 4.9.   Debugging
			Section 4.10.   Conclusion
		Chapter 5.   Dialplan Basics
			Section 5.1.   Dialplan Syntax
			Section 5.2.   A Simple Dialplan
			Section 5.3.   Adding Logic to the Dialplan
			Section 5.4.   Conclusion
		Chapter 6.   More Dialplan Concepts
			Section 6.1.   Expressions and Variable Manipulation
			Section 6.2.   Dialplan Functions
			Section 6.3.   Conditional Branching
			Section 6.4.   Voicemail
			Section 6.5.   Macros
			Section 6.6.   Using the Asterisk Database (AstDB)
			Section 6.7.   Handy Asterisk Features
			Section 6.8.   Conclusion
		Chapter 7.   Understanding Telephony
			Section 7.1.   Analog Telephony
			Section 7.2.   Digital Telephony
			Section 7.3.   The Digital Circuit-Switched Telephone Network
			Section 7.4.   Packet-Switched Networks
			Section 7.5.   Conclusion
		Chapter 8.   Protocols for VoIP
			Section 8.1.   The Need for VoIP Protocols
			Section 8.2.   VoIP Protocols
			Section 8.3.   Codecs
			Section 8.4.   Quality of Service
			Section 8.5.   Echo
			Section 8.6.   Asterisk and VoIP
			Section 8.7.   Conclusion
		Chapter 9.   The Asterisk Gateway Interface (AGI)
			Section 9.1.   Fundamentals of AGI Communication
			Section 9.2.   Writing AGI Scripts in Perl
			Section 9.3.   Creating AGI Scripts in PHP
			Section 9.4.   Writing AGI Scripts in Python
			Section 9.5.   Debugging in AGI
			Section 9.6.   Conclusion
		Chapter 10.   Asterisk for the ber-Geek
			Section 10.1.   Festival
			Section 10.2.   Call Detail Recording
			Section 10.3.   Customizing System Prompts
			Section 10.4.   Manager
			Section 10.5.   Call Files
			Section 10.6.   DUNDi
			Section 10.7.   Conclusion
		Chapter 11.   Asterisk: The Future of Telephony
			Section 11.1.   The Problems with Traditional Telephony
			Section 11.2.   Paradigm Shift
			Section 11.3.   The Promise of Open Source Telephony
			Section 11.4.   The Future of Asterisk
		Appendix A.   VoIP Channels
			Section A.1.   IAX
			Section A.2.   SIP
		Appendix B.   Application Reference
			AbsoluteTimeout( )
			AddQueueMember( )
			ADSIProg( )
			AgentCallbackLogin( )
			AgentLogin( )
			AgentMonitorOutgoing( )
			AGI( )
			AlarmReceiver( )
			Answer( )
			AppendCDRUserField( )
			Authenticate( )
			Background( )
			BackgroundDetect( )
			Busy( )
			CallingPres( )
			ChangeMonitor( )
			ChanIsAvail( )
			CheckGroup( )
			Congestion( )
			ControlPlayback( )
			Curl( )
			Cut( )
			DateTime( )
			DBdel( )
			DBdeltree( )
			DBget( )
			DBput( )
			DeadAGI( )
			Dial( )
			DigitTimeout( )
			Directory( )
			DISA( )
			DumpChan( )
			DUNDiLookup( )
			EAGI( )
			Echo( )
			EndWhile( )
			ENUMLookup( )
			Eval( )
			Exec( )
			ExecIf( )
			FastAGI( )
			Festival( )
			Flash( )
			ForkCDR( )
			GetCPEID( )
			GetGroupCount( )
			GetGroupMatchCount( )
			Goto( )
			GotoIf( )
			GotoIfTime( )
			Hangup( )
			HasNewVoicemail( )
			HasVoicemail( )
			IAX2Provision( )
			ImportVar( )
			LookupBlacklist( )
			LookupCIDName( )
			Macro( )
			MailboxExists( )
			Math( )
			MeetMe ( )
			MeetMeAdmin( )
			MeetMeCount( )
			Milliwatt( )
			Monitor( )
			MP3Player( )
			MusicOnHold( )
			NBScat( )
			NoCDR( )
			NoOp( )
			Park( )
			ParkAndAnnounce( )
			ParkedCall( )
			PauseQueueMember( )
			Playback( )
			Playtones( )
			Prefix( )
			PrivacyManager( )
			Progress( )
			Queue( )
			Random( )
			Read( )
			RealTime
			RealTimeUpdate( )
			Record( )
			RemoveQueueMember( )
			ResetCDR( )
			ResponseTimeout( )
			RetryDial( )
			Ringing( )
			SayAlpha( )
			SayDigits( )
			SayNumber( )
			SayPhonetic( )
			SayUnixTime( )
			SendDTMF( )
			SendImage( )
			SendText( )
			SendURL( )
			Set( )
			SetAccount( )
			SetAMAFlags( )
			SetCallerID( )
			SetCallerPres( )
			SetCDRUserField( )
			SetCIDName( )
			SetCIDNum( )
			SetGlobalVar( )
			SetGroup( )
			SetLanguage( )
			SetMusicOnHold( )
			SetRDNIS( )
			SetVar( )
			SIPAddHeader( )
			SIPDtmfMode( )
			SIPGetHeader( )
			SoftHangup( )
			StopMonitor( )
			StopPlaytones( )
			StripLSD( )
			StripMSD( )
			SubString( )
			Suffix( )
			System( )
			Transfer( )
			TrySystem( )
			TXTCIDName( )
			UnpauseQueueMember( )
			UserEvent( )
			Verbose( )
			VMAuthenticate( )
			VoiceMail( )
			VoiceMailMain( )
			Wait( )
			WaitExten( )
			WaitForRing( )
			WaitForSilence( )
			WaitMusicOnHold( )
			While( )
			Zapateller( )
			ZapBarge( )
			ZapRAS( )
			ZapScan( )
		Appendix C.   AGI Reference
			ANSWER
			CHANNEL STATUS
			DATABASE DEL
			DATABASE DELTREE
			DATABASE GET
			DATABASE PUT
			EXEC
			GET DATA
			GET FULL VARIABLE
			GET OPTION
			GET VARIABLE
			HANGUP
			NOOP
			RECEIVE CHAR
			RECORD FILE
			SAY ALPHA
			SAY DATE
			SAY DATETIME
			SAY DIGITS
			SAY NUMBER
			SAY PHONETIC
			SAY TIME
			SEND IMAGE
			SEND TEXT
			SET AUTOHANGUP
			SET CALLERID
			SET CONTEXT
			SET EXTENSION
			SET MUSIC ON
			SET PRIORITY
			SET VARIABLE
			STREAM FILE
			TDD MODE
			VERBOSE
			WAIT FOR DIGIT
		Appendix D.   Configuration Files
			Section D.1.   modules.conf
			Section D.2.   adsi.conf
			Section D.3.   adtranvofr.conf
			Section D.4.   agents .conf
			Section D.5.   alarmreceiver.conf
			Section D.6.   alsa.conf
			Section D.7.   asterisk.conf
			Section D.8.   cdr.conf
			Section D.9.   cdr_manager.conf
			Section D.10.   cdr_odbc.conf
			Section D.11.   cdr_pgsql.conf
			Section D.12.   cdr_tds.conf
			Section D.13.   codecs.conf
			Section D.14.   dnsmgr.conf
			Section D.15.   dundi.conf
			Section D.16.   enum.conf
			Section D.17.   extconfig .conf
			Section D.18.   extensions.conf
			Section D.19.   features.conf
			Section D.20.   festival.conf
			Section D.21.   iax.conf
			Section D.22.   iaxprov.conf
			Section D.23.   indications .conf
			Section D.24.   logger.conf
			Section D.25.   manager.conf
			Section D.26.   meetme.conf
			Section D.27.   mgcp.conf
			Section D.28.   modem.conf
			Section D.29.   musiconhold.conf
			Section D.30.   osp.conf
			Section D.31.   oss.conf
			Section D.32.   phone.conf
			Section D.33.   privacy.conf
			Section D.34.   queues.conf
			Section D.35.   res_odbc.conf
			Section D.36.   rpt.conf
			Section D.37.   rtp.conf
			Section D.38.   sip.conf
			Section D.39.   sip_notify.conf
			Section D.40.   skinny.conf
			Section D.41.   voicemail.conf
			Section D.42.   vpb.conf
			Section D.43.   zapata.conf
			Section D.44.   zaptel.conf
		Appendix E.   Asterisk Command-Line Interface Reference
			!
			abort halt
			Section E.1.   add
			Section E.2.   agi
			Section E.3.   database
			Section E.4.   iax2
			Section E.5.   indication
			Section E.6.   logger
			Section E.7.   meetme
			Section E.8.   pri
			Section E.9.   remove
			Section E.10.   restart
			Section E.11.   set
			Section E.12.   show
			Section E.13.   sip
			Section E.14.   stop
			Section E.15.   zap
		Colophon
			About the Authors
			Colophon
		Index