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Thanks Henning. <br>
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I will try it.<br>
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How topoh determines that it is a SIP message to be sent outside my network or not?</div>
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Anthony<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De :</b> Henning Westerholt <hw@gilawa.com><br>
<b>Envoyé :</b> jeudi 1 septembre 2022 11:16<br>
<b>À :</b> Anthony Blandin <anthony.blandin@airnity.com>; Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org><br>
<b>Objet :</b> RE: How to hide Via and Record-Route header to external network and restore them to internal network?</font>
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<div>Vous ne recevez pas souvent de courriers de la part de hw@gilawa.com. <a href="https://aka.ms/LearnAboutSenderIdentification">
Découvrez pourquoi cela est important</a></div>
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<p class="x_MsoNormal"><span style="">Hi Anthony,</span></p>
<p class="x_MsoNormal"><span style=""> </span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style="">the restore happens internally and in the configuration you are able to access the headers, this is transparent for you.</span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style="">Just give it a try in your lab, you can easily see it on the network.</span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style=""> </span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style="">Cheers,</span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style=""> </span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style="">Henning</span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style=""> </span></p>
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<p class="x_MsoNormal"><span lang="EN-GB" style="">-- </span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style="">Henning Westerholt – </span><span style=""><a href="https://skalatan.de/blog/"><span lang="EN-GB" style="color:#0563C1">https://skalatan.de/blog/</span></a></span><span lang="EN-GB" style=""></span></p>
<p class="x_MsoNormal"><span lang="EN-GB" style="">Kamailio services – </span><span style=""><a href="https://gilawa.com/"><span lang="EN-GB" style="color:#0563C1">https://gilawa.com</span></a></span><span lang="EN-GB" style=""></span></p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><b>From:</b> Anthony Blandin <anthony.blandin@airnity.com>
<br>
<b>Sent:</b> Thursday, September 1, 2022 11:08 AM<br>
<b>To:</b> Henning Westerholt <hw@gilawa.com>; Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org><br>
<b>Subject:</b> RE: How to hide Via and Record-Route header to external network and restore them to internal network?</p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"> </p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><span style="font-size:12.0pt; color:black">Hi Henning,</span></p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><span style="font-size:12.0pt; color:black">Yes, I looked to topoh to hide topology but I didn't find a way to restore back the Via and Record-Route headers when I get replies from the external network.</span></p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><span style="font-size:12.0pt; color:black">Regards,</span></p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><span style="font-size:12.0pt; color:black">Anthony</span></p>
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<p class="x_MsoNormal" style="margin-left:35.4pt"><b><span style="color:black">De :</span></b><span style="color:black"> Henning Westerholt <<a href="mailto:hw@gilawa.com">hw@gilawa.com</a>><br>
<b>Envoyé :</b> jeudi 1 septembre 2022 11:01<br>
<b>À :</b> Kamailio (SER) - Users Mailing List <<a href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a>><br>
<b>Cc :</b> Anthony Blandin <<a href="mailto:anthony.blandin@airnity.com">anthony.blandin@airnity.com</a>><br>
<b>Objet :</b> RE: How to hide Via and Record-Route header to external network and restore them to internal network?</span>
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<p class="x_MsoNormal" style=""><span style="font-size:9.0pt; font-family:"Segoe UI",sans-serif; color:#212121">Vous ne recevez pas souvent de courriers de la part de
<a href="mailto:hw@gilawa.com">hw@gilawa.com</a>. <a href="https://aka.ms/LearnAboutSenderIdentification">
Découvrez pourquoi cela est important</a></span></p>
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<p class="x_xmsonormal" style="margin-left:35.4pt">Hello,</p>
<p class="x_xmsonormal" style="margin-left:35.4pt"> </p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB">already investigated the topology hiding modules (topos, topoh)? They might be not doing exactly what you are describing, but usually are used for this kind of scenarios.</span></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB">Cheers,</span></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB">Henning</span></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span></p>
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<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB">-- </span></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB">Henning Westerholt –
</span><a href="https://skalatan.de/blog/"><span lang="EN-GB" style="color:#0563C1">https://skalatan.de/blog/</span></a></p>
<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB">Kamailio services –
</span><a href="https://gilawa.com/"><span lang="EN-GB" style="color:#0563C1">https://gilawa.com</span></a></p>
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<p class="x_xmsonormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><b>From:</b> sr-users <<a href="mailto:sr-users-bounces@lists.kamailio.org">sr-users-bounces@lists.kamailio.org</a>>
<b>On Behalf Of </b>Anthony Blandin<br>
<b>Sent:</b> Thursday, September 1, 2022 10:58 AM<br>
<b>To:</b> <a href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a><br>
<b>Subject:</b> [SR-Users] How to hide Via and Record-Route header to external network and restore them to internal network?</p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"> </p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">Hi Community,</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">I have set up a SBC with Kamailio.</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">I am testing voice call from external network to my network and voice call from my network to external network.</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">When I send SIP messages to external network, I want to hide Via and Record-Route headers but when I receive replies from the external network I want to restore these
Via and Record-Route headers to my network.</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">How to store and restore these headers in Kamailio configuration ?</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">Could you help on this?</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">Thanks</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black">Anthony Blandin</span></p>
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<p class="x_xmsonormal" style="margin-left:70.8pt"><span style="font-size:12.0pt; color:black"> </span></p>
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