By Jim Van Meggelen, Jared Smith, Leif Madsen
It can be some time earlier than web telephony with VoIP (Voice over web Protocol) reaches severe mass, yet there is already large circulate in that path. loads of agencies will not be merely interested in VoIP's promise of rate discounts, yet its skill to maneuver info, photos, and voice site visitors over an analogous connection. give some thought to it: a unmarried web telephone name can take info sharing to a complete new point. that is why many IT directors and builders are actively seeking to organize VoIP-based inner most mobile switching structures in the company. The potency that community clients can achieve with it really is virtually mind-boggling. and inexpensive, if the procedure is equipped with open resource software program like Asterisk. There are advertisement VoIP techniques in the market, yet many are dear platforms operating previous, advanced code on out of date undefined. Asterisk runs on Linux and will interoperate with just about all standards-based telephony apparatus. and you may application it for your liking. Asterisk's flexibility comes at a value, despite the fact that: it is not an easy process to profit, and the documentation is missing. Asterisk: the way forward for Telephony solves that challenge through supplying a whole roadmap for fitting, configuring, and integrating Asterisk with latest mobilephone structures. Our consultant walks you thru a uncomplicated dial plan step-by-step, and offers you sufficient operating wisdom to establish an easy yet entire method. What you find yourself with is essentially as much as you. Asterisk embraces the idea that of standards-compliance, but in addition grants freedom to decide on find out how to enforce your procedure. Asterisk: the way forward for Telephony outlines all of the strategies, and indicates you ways to establish voicemail prone, name conferencing, interactive voice reaction, name ready, caller identity, and extra. you are going to additionally find out how Asterisk merges voice and knowledge site visitors seamlessly throughout disparate networks. and also you will not desire extra undefined. For interconnection with electronic and analog cell gear, Asterisk helps a couple of units. prepared for the way forward for telephony? we will assist you hook it up.
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16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. conf Appendix E. Asterisk Command-Line Interface Reference ! 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Publisher: O'ReillyPub Date: September 2005ISBN: 0-596-00962-3Pages: 404 Table of Contents | IndexIt may be a while before Internet telephony with VoIP (Voice over Internet Protocol) reaches critical mass, but there's already tremendous movement in that direction. A lot of organizations are not only attracted to VoIP's promise of cost savings, but its ability to move data, images, and voice traffic over the same connection.
Conclusion Chapter 9. 1. 2. 3. 4. 5. 6. Conclusion Chapter 10. 1. 2. 3. 4. 5. 6. 7. Conclusion Chapter 11. 1. 2. 3. 4. The Future of Asterisk Appendix A. 1. 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.
Having already been a Linux user since 1994, and having already gotten my feet wet in Open Source software development by starting l2tpd, gaim, and cheops, and in the complete absence of anyone having explained the complexity of such a task, I decided that I would simply make my own phone system using hardware borrowed from Adtran, where I had worked as a co-op student. Once I got a call into a PC, I fantasized, I could do anything with it. In fact, it is from this conjecture that the official Asterisk motto (which any sizable, effective project must have) is derived: It's only software!