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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I try to modify the kamailio configuration to work between ipv4 and ipv6 clients. Clients are mobile sofphones, so they are mostly in background without registration.
<o:p></o:p></p>
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<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1">When an INVITE arrives from IPV4 address, transaction is suspended and a push notification is sent to callee.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1">Callee gets push notification and registers to kamailio.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1">INVITE transaction continues.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My kamailio config is based on this article: <a href="https://kb.asipto.com/kamailio:kamailio-mixed-ipv4-ipv6">
https://kb.asipto.com/kamailio:kamailio-mixed-ipv4-ipv6</a> using rtpengine.<o:p></o:p></p>
<p class="MsoNormal">If clients are in foreground it works fine.<o:p></o:p></p>
<p class="MsoNormal">But, when a client is in background, kamailio knows nothing about the callee’s IP address (ipv4 or ipv6). The problematic case is the call from IPV4 to IPV6.<o:p></o:p></p>
<p class="MsoNormal">In this case the FLB_V4V6 flag is missing at continue, since in IPV4V6 route it cannot be set and the rtpengine tries the IPV4->IPV4 case. From the other side IPV6->IPV6. It is understandable, since FLB_V4V6 flag is missing in this case.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My question is: where and when should I set this flag?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Peter<o:p></o:p></p>
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