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<p class="MsoNormal"><span lang="NL">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL"><o:p> </o:p></span></p>
<p class="MsoNormal">I’m trying to use multiple destination sets which may include the same destination.<o:p></o:p></p>
<p class="MsoNormal">For instance: <o:p></o:p></p>
<p class="MsoNormal">SET ID: 1<o:p></o:p></p>
<p class="MsoNormal"><a href="sip:10.0.0.1:5060">sip:10.0.0.1:5060</a><o:p></o:p></p>
<p class="MsoNormal"><a href="sip:10.0.0.2:5060">sip:10.0.0.2:5060</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">SET ID: 2<o:p></o:p></p>
<p class="MsoNormal"><a href="sip:10.0.0.1:5060">sip:10.0.0.1:5060</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Whenever a new SIP INVITE is sent to the Kamailio instance it will use SET ID 1. If then for some reason this call attempt fails, failure_route will trigger and SET ID 2 will be used. At first glance this might not make any sense, but
there is some business logic behind this, but it’s not relevant for this case.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For some reason, the dst_avp variable still contains the destinations of SET ID 1 in failure_route.<o:p></o:p></p>
<p class="MsoNormal">Is there a built-in way to reset this variable for every call to ds_select_domain(), such that only the destinations of passed SET ID will be loaded into the avp?<o:p></o:p></p>
<p class="MsoNormal">I tried setting the avp to $null before calling ds_select_domain, but that had some undesirable effects.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The reason I’m asking this is the destinations the call is being sent to are Freeswitch instances, which will return a 482 Request Merged when the same INVITE is sent to the same Freeswitch within 4 seconds (default T4 timer).
<o:p></o:p></p>
<p class="MsoNormal">I’m trying to match the previously selected destination in failure_route with the next destination and skip if they’re the same, or stop processing when they are the same and no more destinations are available.
<o:p></o:p></p>
<p class="MsoNormal">I know I can mess with the T4 timer in Freeswitch and perhaps even sleep in failure route to deal with the 482 failure, but I rather fix this in a normal way.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:16.0pt;color:#1657EA">Grant Bagdasarian</span><span style="font-size:12.0pt;color:#1657EA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Senior Developer</span><span style="font-size:9.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="NL"><o:p> </o:p></span></p>
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