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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We have configured Kamailio IMS (P, I, S-CSCF) to use a single realm with the same NETWORKNAME and trying to make a call between bob and alice.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We are getting S-CSCF replies “Forbidden – Domain not served” in two scenarios:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">When bob calls alice, the INVITE went from P->S->I->S and the destination S-CSCF responded this error<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">During SIP registration in responding to SUBSCRIBE (endpoint still can register even with this reply, so we proceeded with making call)<o:p></o:p></span></li></ol>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">In quick search we found that in scscf/kamailio.cfg route{ } implementation there is a case when this error is generated:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt"> <i># Terminating<o:p></o:p></i></span></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> if (uri == myself || uri =~ "tel:.*") {<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> if (!term_impu_registered("location")) {<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> xlog("L_DBG", "We need to do an UNREG server SAR assignemnt");<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> assign_server_unreg("UNREG_SAR_REPLY", "location", "term");<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> exit;<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> }<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> } else {<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> <b><span style="color:red"> sl_send_reply("403","Forbidden - Domain not served");</span><o:p></o:p></b></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> exit();<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> }<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> route(term);<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt"> break;<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:11.0pt">What is this error designed for? Also in general are we supposed to rework the routing code in Kamailio.cfg (P, S, I-CSCF)?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks for any suggestions in advance.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Yin <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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