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<p class=MsoNormal>Any comments?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> users-bounces@lists.kamailio.org
[mailto:users-bounces@lists.kamailio.org] <b>On Behalf Of </b>Carlos A. Alvarez<br>
<b>Sent:</b> Thursday, July 09, 2009 11:10 AM<br>
<b>To:</b> 'Users@lists.kamailio.org'<br>
<b>Subject:</b> [Kamailio-Users] OpenSer/Kamailio and A2Billing<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Folks,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>First of all I will like to apologize before hand, since I
am better with numbers than with words. Therefore I hope you all can at
least understand the essence of what I am trying to communicate. ;-)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I am trying to set up an application, where I use Kamailio,
asterisk, and A2Billing to process pre paid calling cards, and wholesale
voip. I already have setup a kamailio service using carrier route and
a2billing as a preprocessor. It works beautiful, Great work guys!!!!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The questions I have are around the design for resiliency
and redundancy. I will like to use another instance of kamailio for a
dispatcher function to load balance between asterisk servers, since the is a
limitation and performance issues with asterisk. Now I have done some research
and some testing and they only way I know I can make it work is by using 302
redirection to redirect the invites from my customers to the corresponding
asterisk server. If I use a direct setup using ds_select_dst asterisk gets all “confused”
since the request appears to come from the dispatcher ip address. For
wholesale ip, I filter a2billing on ip address and not username. My
configuration is as follows:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><customer>----<span style='font-family:Wingdings'>à</span><dispatcher/kamailio>----<span
style='font-family:Wingdings'>à</span><a2billing/asterisk>---<span
style='font-family:Wingdings'>à</span><carrierroute/kamailio>----<span
style='font-family:Wingdings'>à</span><carrier><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any thoughts, comments and/or suggestions are more than
welcomed!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Carlos<o:p></o:p></p>
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