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<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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