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Version 31 (Adrian Georgescu, 12/16/2008 03:55 pm)

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== Description ==
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[[Image(CallControl.png, align=right)]]
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Call Control is a prepaid application that can be used together with
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OpenSIPS call_control module and CDRTool rating engine to limit the duration
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of SIP sessions based on a prepaid balance. It can also be used to limit the
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duration of any session to a predefined maximum value without debiting a
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balance.
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Call Control achieves this by maintaining a timer for each session and
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sending BYE messages to both SIP end-points, if the session exceeds its
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maximum session limit or if the Call Control receives a command to
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forcefully close the call from outside. Features:
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 * Parallel sessions using one balance per subscriber
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 * Support for sessions that have timeout without BYE
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 * Support for sessions that have timeout for media (using [http://mediaproxy-ng.org MediaProxy])
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 * Manual session stop from server terminal           
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 * Overview of ongoing sessions in the web page or server terminal
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 * Graceful restart without loosing track of sessions 
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 * Detailed logging of all performed actions using syslog
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 * Web page provisioning for prepaid accounts  (using [http://cdrtool.ag-projects.com CDRTool])
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== Download ==
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The software is available as a tar archive at:
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[http://download.ag-projects.com/CallControl/ http://download.ag-projects.com/CallControl/]
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For people running Debian testing or unstable there is an official public repository provided by AG Projects. To use it, add these lines in /etc/apt/sources.list
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{{{
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# AG Projects software
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deb	http://ag-projects.com/debian unstable main
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deb-src http://ag-projects.com/debian unstable main
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}}}
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Install the AG Projects debian software signing key:
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{{{
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wget http://download.ag-projects.com/agp-debian-gpg.key
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apt-key add agp-debian-gpg.key
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}}}
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After that, run:
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{{{
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apt-get update
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apt-get install callcontrol
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}}}
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== License ==
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This software is licensed according to the GNU General Public License version 2.
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== Configuration ==
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You need to setup the following components:
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 * OpenSIPS callcontrol module, version >=1.5
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 * Call Control application (this project)
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 * CDRTool rating engine, version >=6.7.0
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=== OpenSIPS configuration ===
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{{{
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loadmodule "call_control.so"
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modparam("call_control", "disable",      0)
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route {
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...
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    # you need to call this function at the first INVITE
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    # everything else is automatic
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    if ((method=="INVITE" && !has_totag())) {
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        call_control();
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    }
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...
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}
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}}}
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=== Call Control configuration ===
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For all configuration options and their description see [source:config.ini.sample config.ini.sample]
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{{{
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[CallControl]
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; how to detect sessions that have media timeout without BYE
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timeout_detection=dialog
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[CDRTool]
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; connection to cdrtool rating engine for MaxSessionTime() and DebitBalance()
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address = cdrtool.hostname:9024
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[OpenSIPS]
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; connection to OpenSIPS call_control module
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; socket_path = /var/run/opensips/socket
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; max_connections = 10
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}}}
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=== CDRTool rating engine configuration ===
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{{{
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$RatingEngine=array( "socketIP"           => "0",
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                     "socketPort"         => "9024",
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                     "cdr_source"         => "opensips_radius",
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                     "allow"              => array('10.')
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                     );
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}}}
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See the documentation of CDRTool project for how to setup the rating tables.
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=== Prepaid engine API ===
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http://download.ag-projects.com/CDRTool/doc/PREPAID.txt
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Overview of ongoing sessions, generation of prepaid cards and prepaid       
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accounts can be managed from CDRTool rating tables web interface.
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=== Monitoring ongoing and terminating sessions ===
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{{{
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/etc/init.d/callcontrol sessions
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/etc/init.d/callcontrol session id
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/etc/init.d/callcontrol terminate id
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}}}
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 === Support ===
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Call Control is developed and supported by [http://ag-projects.com AG Projects]. AG Projects offers
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best-effort free support. "best-effort" means that we try to solve the bugs
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you report or help fix your problems as soon as we can, subject to available
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resources. You may report bugs or feature request to:
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users@lists.opensips.org
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A mailing list archive is available at:
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http://lists.opensips.org/cgi-bin/mailman/listinfo/users