Difference between revisions of "About Asterisk"

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Asterisk is a free telephone [http://en.wikipedia.org/wiki/Private_branch_exchange Private Branch Exchange] (PBX) system.
 
Asterisk is a free telephone [http://en.wikipedia.org/wiki/Private_branch_exchange Private Branch Exchange] (PBX) system.
 
This can most easily been seen as a telephone system used to connect callers and as a sort of answering and dispatching machine. (e.g. "press 1 to speak to ..." etc)
 
This can most easily been seen as a telephone system used to connect callers and as a sort of answering and dispatching machine. (e.g. "press 1 to speak to ..." etc)
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To get yourself started have a look at [http://www.digium.com/en/docs/asterisk_handbook/handbook-draft.pdf The Asterisk Handbook] (2003)
  
 
== Connecting to existing systems ==
 
== Connecting to existing systems ==
 
Connecting Asterisk to an existing telephone network. This is called a PSTN call (Public Switched Telephone Network)
 
Connecting Asterisk to an existing telephone network. This is called a PSTN call (Public Switched Telephone Network)
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Asterisk can be connected to a SIP or IAX provider (like [http://www.voipbuster.com VoIPBuster]) or by using a (voice-)modem-card of Zaptel-card in de Asterisk-server.
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Asterisk can be connected to a SIP or IAX provider (like [http://www.voipbuster.com VoIPBuster]) or by using a (voice-)modem-card of Zaptel-card in the Asterisk-server.
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===VoIPBuster===
 
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A few config-files have to be changed in order to get the system to work with VoIPBuster
 
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Adding to '''sip.conf''':
 
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[voipbuster]
 
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type=peer
 
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host=sip1.voipbuster.com
 
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username=GEBRUIKERSNAAM
 
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secret=WACHTWOORD
 
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notransfer=yes
 
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insecure=very
 
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externip=JEEXTERNEIP
 
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context=voipbuster-out
 
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register => GEBRUIKER:WACHTWOORD@sip1.voipbuster.com
 
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[http://www.voipbuster.com/en/sipp.html More information on VoIPBuster homepage]
 
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At this point there is a (peer) connection active. The only thing left is making it work.
 
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'''extensions.conf'''
 
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[voipbuster-out]
 
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exten => _0[12345789]XXXXXXXX,1,Dial,IAX2/voipbuster/0031${EXTEN:5}
 
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exten => _0[12345789]XXXXXXXX,2,Congestion
 
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exten => _XXXXXXX,1,Dial,IAX2/voipbuster/0031[b]35[/b]${EXTEN}
 
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exten => _XXXXXXX,2,Congestion
 
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[home]
 
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exten => 7500,1,VoicemailMain
 
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exten => 7500,2,Hangup
 
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exten => 9999,1,Ringing
 
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exten => 9999,2,Dial(SIP/9999,20,T)
 
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exten => 9999,3,Voicemail(u9999)
 
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exten => 9999,4,Hangup
 
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include => voipbuster-out
 
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exten => _06XXXXXXXX,1,Dial(SIP/${EXTEN}@pstn-spa3k,60,)
 
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exten => _06XXXXXXXX,2,Congestion
 
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Previous code will operate as follows:
 
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All extensions of 10 digits, starting with a "0", will replace the leading zero with "0031" (Dutch country-code), which is needed for using VoIPbuster.
 
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7500 is the voicemail
 
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9999 is de incomming line, for Voipbuster-IN. At this moment, this does not yet work.
 
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06 numbers are routed through the installed modem-card, because this is cheaper than using VoIPbuster.
 
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'''Example of SIP.conf:'''
 
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[9999]
 
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type=friend
 
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language=nl
 
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host=dynamic
 
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context=home
 
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secret=WACHTWOORD
 
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mailbox=9999
 
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dtmfmode=rfc2833
 
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disallow=all
 
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allow=ulaw
 
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[5555]
 
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; If you're using Asterisk, this goes into the Incoming settings
 
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; For your Trunk
 
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type=friend
 
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host=dynamic
 
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; If using Asterisk@home, change the below line to context=from-internal
 
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context=home
 
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secret=WACHTWOORD
 
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dtmfmode=rfc2833
 
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disallow=all
 
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allow=ulaw
 
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insecure=very
 
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[pstn-spa3k]
 
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; If you're using Asterisk, this section goes into the Outgoing Settings
 
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; for your trunk.
 
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type=peer
 
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auth=md5
 
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host=134.145.134.18
 
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port=5061
 
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secret=WACHTWOORD
 
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username=asterisk
 
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fromuser=asterisk
 
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dtmfmode=rfc2833
 
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; If using Asterisk@home, change the below line to context=from-internal
 
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context=home
 
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insecure=very
 
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If all went well, it is now possible to make a call using VoIPBuster.
 
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Using a free account, the call is limited to 2 minutes.
 
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It is also possible to get a telephone number with VoIPbuster. See their site for more info.
 
  
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== Links ==
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* [[VoIPBuster|Configuration of VoIPBuster]]
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* [http://gathering.tweakers.net/forum/list_messages/1093262 Het grote Asterisk topic op Tweakers]
 

Latest revision as of 17:26, 15 February 2007

Asterisk logo.png

Asterisk is a free telephone Private Branch Exchange (PBX) system. This can most easily been seen as a telephone system used to connect callers and as a sort of answering and dispatching machine. (e.g. "press 1 to speak to ..." etc) To get yourself started have a look at The Asterisk Handbook (2003)

Connecting to existing systems

Connecting Asterisk to an existing telephone network. This is called a PSTN call (Public Switched Telephone Network) Asterisk can be connected to a SIP or IAX provider (like VoIPBuster) or by using a (voice-)modem-card of Zaptel-card in the Asterisk-server.

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