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)
 
+
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)
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.
 
 
===VoIPBuster===
 
A few config-files have to be changed in order to get the system to work with VoIPBuster
 
 
 
Adding to '''sip.conf''':
 
 
 
[voipbuster]
 
type=peer
 
host=sip1.voipbuster.com
 
username=GEBRUIKERSNAAM
 
secret=WACHTWOORD
 
notransfer=yes
 
insecure=very
 
externip=JEEXTERNEIP
 
context=voipbuster-out
 
 
 
register => GEBRUIKER:WACHTWOORD@sip1.voipbuster.com
 
 
 
[http://www.voipbuster.com/en/sipp.html More information on VoIPBuster homepage]
 
 
 
At this point there is a (peer) connection active. The only thing left is making it work.
 
 
 
'''extensions.conf'''
 
[voipbuster-out]
 
exten => _0[12345789]XXXXXXXX,1,Dial,IAX2/voipbuster/0031${EXTEN:5}
 
exten => _0[12345789]XXXXXXXX,2,Congestion
 
exten => _XXXXXXX,1,Dial,IAX2/voipbuster/0031[b]35[/b]${EXTEN}
 
exten => _XXXXXXX,2,Congestion
 
[home]
 
exten => 7500,1,VoicemailMain
 
exten => 7500,2,Hangup
 
exten => 9999,1,Ringing
 
exten => 9999,2,Dial(SIP/9999,20,T)
 
exten => 9999,3,Voicemail(u9999)
 
exten => 9999,4,Hangup
 
include => voipbuster-out
 
exten => _06XXXXXXXX,1,Dial(SIP/${EXTEN}@pstn-spa3k,60,)
 
exten => _06XXXXXXXX,2,Congestion
 
 
 
Previous code will operate as follows:
 
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.
 
 
 
7500 is the voicemail
 
 
 
9999 is de incomming line, for Voipbuster-IN. At this moment, this does not yet work.
 
 
 
06 numbers are routed through the installed modem-card, because this is cheaper than using VoIPbuster.
 
 
 
'''Example of SIP.conf:'''
 
[9999]
 
type=friend
 
language=nl
 
host=dynamic
 
context=home
 
secret=WACHTWOORD
 
mailbox=9999
 
dtmfmode=rfc2833
 
disallow=all
 
allow=ulaw
 
[5555]
 
; If you're using Asterisk, this goes into the Incoming settings
 
; For your Trunk
 
type=friend
 
host=dynamic
 
; If using Asterisk@home, change the below line to context=from-internal
 
context=home
 
secret=WACHTWOORD
 
dtmfmode=rfc2833
 
disallow=all
 
allow=ulaw
 
insecure=very
 
[pstn-spa3k]
 
; If you're using Asterisk, this section goes into the Outgoing Settings
 
; for your trunk.
 
type=peer
 
auth=md5
 
host=134.145.134.18
 
port=5061
 
secret=WACHTWOORD
 
username=asterisk
 
fromuser=asterisk
 
dtmfmode=rfc2833
 
; If using Asterisk@home, change the below line to context=from-internal
 
context=home
 
insecure=very
 
 
 
If all went well, it is now possible to make a call using VoIPBuster.
 
Using a free account, the call is limited to 2 minutes.
 
 
 
It is also possible to get a telephone number with VoIPbuster. See their site for more info.
 
  
== Links ==
+
* [[VoIPBuster|Configuration of VoIPBuster]]
* [http://gathering.tweakers.net/forum/list_messages/1093262 Het grote Asterisk topic op Tweakers]
 

Latest revision as of 18:26, 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.