<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body>
    <font face="monospace">Hi there,<br>
      <br>
      Actually you do not need the B2B, you can achieve the same kind of
      privacy (at SIP level) with dialog module and topology_hiding
      module together.<br>
      <br>
      Regards,<br>
    </font>
    <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  <a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS Bootcamp 5-16 Dec 2022, online
  <a class="moz-txt-link-freetext" href="https://www.opensips.org/training/OpenSIPS_eBootcamp_2022/">https://www.opensips.org/training/OpenSIPS_eBootcamp_2022/</a></pre>
    <div class="moz-cite-prefix">On 10/19/22 1:23 AM, Abdul Basit wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAGQG5MZJCdnoVf=Wy-f0v3sDpJTTi_ggvtQNhn_U6AewSrfB_g@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">Nitesh,
        <div><br>
        </div>
        <div>You need a <a
href="https://www.tutorialspoint.com/session_initiation_protocol/session_initiation_protocol_b2bua.htm"
            moz-do-not-send="true">B2BUA function</a> with the help of a
          topo-hiding module with opensips as Bela shared in his email.</div>
        <div>Also, install the RTP proxy on the same opensips box (not
          necessary if you need separate signaling and media boxes).</div>
        <div><br>
        </div>
        <div>Far end party will not be able to see the A-party
          information. </div>
        <div> </div>
        <div><a
            href="https://www.opensips.org/Documentation/Tutorials-B2BUA-3-2"
            moz-do-not-send="true">https://www.opensips.org/Documentation/Tutorials-B2BUA-3-2<br>
          </a></div>
        <div><br>
        </div>
        <div>I hope this will help. </div>
        <div><br clear="all">
          <div>
            <div dir="ltr" class="gmail_signature"
              data-smartmail="gmail_signature">
              <div><font size="2"><span
                    style="font-family:verdana,sans-serif"><span
                      style="color:rgb(39,78,19)">--<br>
                      regards,</span></span></font></div>
              <font size="2"><span
                  style="font-family:verdana,sans-serif"><span
                    style="color:rgb(39,78,19)"><br>
                    abdul basit</span></span></font></div>
          </div>
        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Wed, 19 Oct 2022 at 03:14,
          Bela H <<a href="mailto:hobe69@hotmail.com"
            moz-do-not-send="true">hobe69@hotmail.com</a>> wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div class="msg5674206699417104212">
            <div style="overflow-wrap: break-word;" lang="EN-NZ">
              <div class="m_5674206699417104212WordSection1">
                <p class="MsoNormal">Hi Nitesh,</p>
                <p class="MsoNormal"> </p>
                <ol style="margin-top:0cm" type="1" start="1">
                  <li class="m_5674206699417104212MsoListParagraph"
                    style="margin-left:0cm">Check the topology hiding
                    function: <a
                      href="https://opensips.org/docs/modules/3.2.x/topology_hiding.html"
                      target="_blank" moz-do-not-send="true">https://opensips.org/docs/modules/3.2.x/topology_hiding.html</a></li>
                  <li class="m_5674206699417104212MsoListParagraph"
                    style="margin-left:0cm">Use e.g. rtpproxy:
                  </li>
                </ol>
                <p class="m_5674206699417104212MsoListParagraph"><a
href="https://opensips.org/docs/modules/3.2.x/rtpproxy.html#func_rtpproxy_offer"
                    target="_blank" moz-do-not-send="true">https://opensips.org/docs/modules/3.2.x/rtpproxy.html#func_rtpproxy_offer</a></p>
                <p class="m_5674206699417104212MsoListParagraph"><a
href="http://opensips.com.br/wiki/index.php?title=Oopensips_Nat_script_with_RTPPROXY_-_English"
                    target="_blank" moz-do-not-send="true">http://opensips.com.br/wiki/index.php?title=Oopensips_Nat_script_with_RTPPROXY_-_English</a></p>
                <p class="m_5674206699417104212MsoListParagraph"><a
                    href="https://github.com/sippy/rtpproxy"
                    target="_blank" moz-do-not-send="true">https://github.com/sippy/rtpproxy</a></p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">I hope these help!</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">Cheers,</p>
                <p class="MsoNormal">Bela</p>
                <p class="MsoNormal"> </p>
                <div
style="border-right:none;border-bottom:none;border-left:none;border-top:1pt
                  solid rgb(225,225,225);padding:3pt 0cm 0cm">
                  <p class="MsoNormal" style="border:none;padding:0cm"><b>From:
                    </b><a href="mailto:aviator.nitesh.d@gmail.com"
                      target="_blank" moz-do-not-send="true">Nitesh
                      Divecha</a><br>
                    <b>Sent: </b>Wednesday, 19 October 2022 04:26<br>
                    <b>To: </b><a
                      href="mailto:users@lists.opensips.org"
                      target="_blank" moz-do-not-send="true">OpenSIPS
                      users mailling list</a><br>
                    <b>Subject: </b>[OpenSIPS-Users] - INVITE (SDP)
                    includes Originators IP info</p>
                </div>
                <p class="MsoNormal"> </p>
                <div>
                  <p class="MsoNormal">Hello All, </p>
                  <div>
                    <p class="MsoNormal"> </p>
                  </div>
                  <div>
                    <p class="MsoNormal">This is my first OpenSIPS
                      project so I'm a newbie! </p>
                  </div>
                  <div>
                    <p class="MsoNormal"> </p>
                  </div>
                  <div>
                    <p class="MsoNormal">After going back and forth with
                      "uac_replace_from()", I was successfully able to
                      make a call from my ATA -> OpenSIPS ->
                      Outbound Provider -> CellPhone. All worked fine
                      with two-way audio except few issues: </p>
                  </div>
                  <div>
                    <p class="MsoNormal"> </p>
                  </div>
                  <div>
                    <p class="MsoNormal">1) Outbound Provider was able
                      to see my ATA (Originator's IP/User-Agent/etc) in
                      SIP INVITE (SDP) which kinda raised some eyebrows
                      with Outbound provider. How can I block or strip
                      all the Originator's contact info in SIP INVITE
                      (SDP) and only send OpenSIPS info? Meaning I want
                      to protect my Originators and don't want to show
                      anything to the Outbound Provider. Outbound
                      providers should only communicate to the OpenSIPS
                      server. </p>
                  </div>
                  <div>
                    <p class="MsoNormal"> </p>
                  </div>
                  <div>
                    <p class="MsoNormal">2) When the call was up I
                      failed to capture any media/RTP on the OpenSIPS
                      server. I want to involve OpenSIPS in media/RTP
                      between ATA and outbound providers. How can I
                      force media/RTP to pass-thru OpenSIPS IP so I'm
                      not exposing Originator's IP.</p>
                  </div>
                  <div>
                    <p class="MsoNormal"> </p>
                  </div>
                  <div>
                    <p class="MsoNormal">Any insights will be highly
                      appreciated. </p>
                  </div>
                  <div>
                    <p class="MsoNormal"> </p>
                  </div>
                  <div>
                    <p class="MsoNormal">Cheers, </p>
                  </div>
                </div>
                <p class="MsoNormal">Nitesh</p>
                <p class="MsoNormal"> </p>
              </div>
            </div>
            _______________________________________________<br>
            Users mailing list<br>
            <a href="mailto:Users@lists.opensips.org" target="_blank"
              moz-do-not-send="true">Users@lists.opensips.org</a><br>
            <a
              href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
              rel="noreferrer" target="_blank" moz-do-not-send="true">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
          </div>
        </blockquote>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <pre class="moz-quote-pre" wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a class="moz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>