<html><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:14pt"><div id="yiv9566897060" class="" style=""><div class="" style=""><div style="color:#000;background-color:#fff;font-family:verdana, helvetica, sans-serif;font-size:14pt" class=""><div id="yiv9566897060" class="" style=""><div id="yiv9566897060yui_3_13_0_1_1398507029661_14822" class="" style=""><div style="color:#000;background-color:#fff;font-family:verdana, helvetica, sans-serif;font-size:14pt" class="" id="yiv9566897060yui_3_13_0_1_1398507029661_14821"><div class="" id="yiv9566897060yui_3_13_0_1_1398507029661_9015" style=""><div id="yiv9566897060" class="" style=""><div id="yiv9566897060yui_3_13_0_1_1398507029661_9017" class="" style=""><div id="yiv9566897060yui_3_13_0_1_1398507029661_9016" style="font-size:14pt" class=""><div id="yiv9566897060yui_3_13_0_7_1398415973063_13" class="" style="font-size:14pt"><span
id="yiv9566897060yui_3_13_0_7_1398415973063_27" class="" style="">Hi folks,</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_15" class="" style="font-size:14pt"></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"> </div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt">I am using Kamailio with IMS, I added the configuration of the WebSocket to the kamailio.cfg in the PCSCF to enable WebRTC clients like (JsSIP) to
communicate with each other.. The registration works so far, however when I try to make peer-2-peer call between alice and bob, the caller gets a "403 error" <span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_35" style="font-size:14pt">"403 Forbidden Mohammed- Dialog not found on S-CSCF or Terminating user not suitable for unregistered services" from the S-CSCF.. </span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" style="font-size:14pt"><br style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" style="font-size:14pt" id="yiv9566897060yui_3_13_0_1_1398507029661_12863">I did trace on the PCSCF and I found a strange signaling behaviour.</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" style="font-size:14pt"><br class="" style=""></span></div><div
id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_36" style="font-size:14pt">the invite is negotiated between the IMS components as follows:</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" style="font-size:14pt"><br class="" style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_39" style="font-size:14pt">INVITE from </span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12253" style="font-size:14pt">PCSCF</span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_43" style="font-size:14pt"> to </span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12257" style="font-size:14pt">SCSCF</span><span class=""
id="yiv9566897060yui_3_13_0_1_1398415973063_12258" style="font-size:14pt"> </span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="font-size:14pt"><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_48" style="font-size:14pt">INVITE from P</span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12270" style="font-size:14pt">CSCF</span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_43" style="font-size:14pt"> to </span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_59" style="font-size:14pt">PCSCF</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" id="yiv9566897060yui_3_13_0_1_1398507029661_9030" style="">PCSCF responses itself with "403 Forbidden - You must register first with a S-CSCF"<br class="" style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class=""
id="yiv9566897060yui_3_13_0_1_1398415973063_12257" style="font-size:14pt">SCSCF</span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12258" style="font-size:14pt"> sends the response "403 Forbidden Mohammed- Dialog not found on S-CSCF or Terminating user not suitable for unregistered services" to the </span><span class="" style="font-size:14pt">PCSCF</span><br class="" style=""></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt"><br class="" style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style="">The private IP address of the <span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12253" style="font-size:14pt">PCSCF</span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_43" style="font-size:14pt"> is </span><span class="" style="color:rgb(34, 34, 34);font-family:Consolas, 'Lucida Console',
monospace;white-space:pre-wrap;font-size:18px;font-weight:bold" id="yiv9566897060yui_3_13_0_1_1398507029661_12484">172.19.6.35 and of the </span><span class="" style="font-size:14pt" id="yiv9566897060yui_3_13_0_1_1398507029661_12487">SCSCF is </span><span class="" style="color:rgb(34, 34, 34);font-family:Consolas, 'Lucida Console', monospace;font-size:18px;font-weight:bold;white-space:pre-wrap" id="yiv9566897060yui_3_13_0_1_1398507029661_12553">172.19.6.36. The </span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12253" style="font-size:14pt">PCSCF</span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_43" style="font-size:14pt"> has a public IP "193.175.132.235"</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt"><br class="" style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class=""
style="font-size:14pt" id="yiv9566897060yui_3_13_0_1_1398507029661_12208">The IMS components don't run on the same machine, </span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12253" style="font-size:14pt">PCSCF</span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_43" style="font-size:14pt"> and </span><span class="" style="font-size:14pt">SCSCF</span><span class="" id="yiv9566897060yui_3_13_0_1_1398507029661_9034" style="font-size:14pt"> are listening to the port 5060. the WebSocket port of the </span><span class="" id="yiv9566897060yui_3_13_0_1_1398415973063_12253" style="font-size:14pt">PCSCF</span><span class="" id="yiv9566897060yui_3_13_0_7_1398415973063_43" style="font-size:14pt"> is 8000</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt"><br class="" style=""></span></div><div
id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt" id="yiv9566897060yui_3_13_0_1_1398507029661_12209">Can anyone help me get a solution for this problem</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt"><br class="" style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt" id="yiv9566897060yui_3_13_0_1_1398507029661_12210">Thanks in advance </span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt"><br class="" style=""></span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class="" style=""><span class="" style="font-size:14pt" id="yiv9566897060yui_3_13_0_1_1398507029661_12211">Best regards,</span></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_17" class=""
style="font-size:14pt"><br class="" style=""></div><div id="yiv9566897060yui_3_13_0_7_1398415973063_19" class="" style="font-size:14pt;color:rgb(17, 17, 17);font-weight:bold"><font size="3" id="yiv9566897060yui_3_13_0_1_1398415973063_12136" class="" style="">Medo</font></div></div></div></div></div><div id="yiv9566897060yui_3_13_0_7_1398507029661_13" class="" style=""><span id="yiv9566897060yui_3_13_0_7_1398507029661_26" class="" style=""></span></div><div class="" id="yiv9566897060yui_3_13_0_1_1398507029661_8908" style=""><div id="yiv9566897060yui_3_13_0_1_1398507029661_8833" class="" style=""><div id="yiv9566897060yui_3_13_0_1_1398507029661_8835" class="" style=""><div class="" id="yiv9566897060yui_3_13_0_1_1398507029661_8844" style="width:826.0069580078125px"><a rel="nofollow" tabindex="-1" target="_blank" href="http://buy.norton.com/specialoffers?VENDORID=YAHOO" class="" style="text-decoration:none;font-family:'Helvetica Neue', 'Segoe UI',
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