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    <font face="monospace">Hi Li,<br>
      <br>
      Somehow we are going in circles here :). So, could you post a pcap
      for call going via your B2B  (showing all in and out SIP messages)
      and mention which frame is the outgoing request you cannot modify
      ?<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 Summit 27-30 Sept 2022, Athens
  <a class="moz-txt-link-freetext" href="https://www.opensips.org/events/Summit-2022Athens/">https://www.opensips.org/events/Summit-2022Athens/</a></pre>
    <div class="moz-cite-prefix">On 8/24/22 6:50 PM, Li Cai wrote:<br>
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        <p class="MsoNormal">Hi Bogdan,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Thanks for the explanation. I mean that the
          local_route can take effect for the forwarded INVITE(from
          incoming ones) in our proxy, but not after b2b_bridge. I’ll do
          more debugging on it since the messages should be visible.
          Thank you very much.<o:p></o:p></p>
        <p class="MsoNormal"><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">Li<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <div style="border:none;border-top:solid #E1E1E1
            1.0pt;padding:3.0pt 0cm 0cm 0cm">
            <p class="MsoNormal"><b><span
                  style="mso-fareast-language:EN-CA" lang="EN-US">From:</span></b><span
                style="mso-fareast-language:EN-CA" lang="EN-US">
                Bogdan-Andrei Iancu <a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org"><bogdan@opensips.org></a>
                <br>
                <b>Sent:</b> August 24, 2022 10:33 AM<br>
                <b>To:</b> Li Cai <a class="moz-txt-link-rfc2396E" href="mailto:Li.Cai@comtech.com"><Li.Cai@comtech.com></a>; OpenSIPS
                users mailling list <a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a><br>
                <b>Subject:</b> Re: [OpenSIPS-Users] Modify the headers
                after executing a MI function in B2B_LOGIC module<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"
          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span
            style="mso-fareast-language:EN-CA"><o:p></o:p></span></p>
        <p class="MsoNormal"
          style="mso-margin-top-alt:auto;margin-bottom:3.0pt"><strong><span
style="font-size:12.0pt;font-family:"Calibri",sans-serif;color:red;border:solid
              gray 3.0pt;padding:0cm;background:lightgrey">WARNING:
              External Email: Exercise Caution</span></strong><span
            style="font-size:12.0pt;font-family:"Times New
            Roman",serif"><br>
            <br>
          </span><o:p></o:p></p>
        <div>
          <p class="MsoNormal"><span style="font-family:"Courier
              New"">Hi Li,<br>
              <br>
              All SIP requests generated by `b2b_bridge` are to be
              visible in local_route. And on the contrary, the incoming
              (received) requests DO NOT trigger local route.<br>
              <br>
              Regards,<br>
              <br>
            </span><o:p></o:p></p>
          <pre>Bogdan-Andrei Iancu<o:p></o:p></pre>
          <pre><o:p> </o:p></pre>
          <pre>OpenSIPS Founder and Developer<o:p></o:p></pre>
          <pre>  <a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips-solutions.com%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Alp8ey%2Frlw%2BagiLIsIphXz51eF74enunVGtuvY3veHA%3D&reserved=0" moz-do-not-send="true">https://www.opensips-solutions.com</a><o:p></o:p></pre>
          <pre>OpenSIPS Summit 27-30 Sept 2022, Athens<o:p></o:p></pre>
          <pre>  <a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips.org%2Fevents%2FSummit-2022Athens%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ECg5RaeWv7nyMoFz2sTaFdQU%2BqzGA3wBaCGzbUfmygo%3D&reserved=0" moz-do-not-send="true">https://www.opensips.org/events/Summit-2022Athens/</a><o:p></o:p></pre>
          <div>
            <p class="MsoNormal">On 8/24/22 4:34 PM, Li Cai wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoNormal">Hi Bogdan,<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">Yes, we have put the changes by calling
              remove_hf() and append_hf() in the ‘local_route’, those
              functions for new incoming INVITE but not the INVITE sent
              out by ‘b2b_bridge’.<o:p></o:p></p>
            <p class="MsoNormal"> <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">Li<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <div>
              <div style="border:none;border-top:solid #E1E1E1
                1.0pt;padding:3.0pt 0cm 0cm 0cm">
                <p class="MsoNormal"><b><span
                      style="mso-fareast-language:EN-CA" lang="EN-US">From:</span></b><span
                    style="mso-fareast-language:EN-CA" lang="EN-US">
                    Bogdan-Andrei Iancu
                    <a href="mailto:bogdan@opensips.org"
                      moz-do-not-send="true"><bogdan@opensips.org></a>
                    <br>
                    <b>Sent:</b> August 24, 2022 7:18 AM<br>
                    <b>To:</b> OpenSIPS users mailling list <a
                      href="mailto:users@lists.opensips.org"
                      moz-do-not-send="true">
                      <users@lists.opensips.org></a>; Li Cai <a
                      href="mailto:Li.Cai@comtech.com"
                      moz-do-not-send="true"><Li.Cai@comtech.com></a><br>
                    <b>Subject:</b> Re: [OpenSIPS-Users] Modify the
                    headers after executing a MI function in B2B_LOGIC
                    module</span><o:p></o:p></p>
              </div>
            </div>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
            <p class="MsoNormal"
              style="mso-margin-top-alt:auto;margin-bottom:3.0pt"><strong><span
style="font-size:12.0pt;font-family:"Calibri",sans-serif;color:red;border:solid
                  gray 3.0pt;padding:0cm;background:lightgrey">WARNING:
                  External Email: Exercise Caution</span></strong><span
                style="font-size:12.0pt;font-family:"Times New
                Roman ,serif",serif"><br>
                <br>
                <br>
              </span><o:p></o:p></p>
            <div>
              <p class="MsoNormal"><span
                  style="font-family:"Courier New"">Hi Li,<br>
                  <br>
                  Have you tried to use the local_route in order to do
                  custom changes on the outgoing requests generated by
                  the B2B bridging ?<br>
                  <br>
                  Best regards,<br>
                  <br>
                  <br>
                </span><o:p></o:p></p>
              <pre>Bogdan-Andrei Iancu<o:p></o:p></pre>
              <pre> <o:p></o:p></pre>
              <pre>OpenSIPS Founder and Developer<o:p></o:p></pre>
              <pre>  <a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips-solutions.com%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Alp8ey%2Frlw%2BagiLIsIphXz51eF74enunVGtuvY3veHA%3D&reserved=0" moz-do-not-send="true">https://www.opensips-solutions.com</a><o:p></o:p></pre>
              <pre>OpenSIPS Summit 27-30 Sept 2022, Athens<o:p></o:p></pre>
              <pre>  <a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips.org%2Fevents%2FSummit-2022Athens%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ECg5RaeWv7nyMoFz2sTaFdQU%2BqzGA3wBaCGzbUfmygo%3D&reserved=0" moz-do-not-send="true">https://www.opensips.org/events/Summit-2022Athens/</a><o:p></o:p></pre>
              <div>
                <p class="MsoNormal">On 8/23/22 10:34 PM, Li Cai wrote:<o:p></o:p></p>
              </div>
              <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
                <p class="MsoNormal">Hi,<o:p></o:p></p>
                <p class="MsoNormal"> <o:p></o:p></p>
                <p class="MsoNormal">I’m working on a change for a B2BUA
                  based on OpenSIPs 2.4, but not sure if the function is
                  supported or if it has been supported in the later
                  versions.<o:p></o:p></p>
                <p class="MsoNormal"> <o:p></o:p></p>
                <p class="MsoNormal">We have used the MI command
                  b2b_bridge to bridge existing calls from one entity to
                  another and it works, the scenario is the same as
                  expected. While besides this, we also need to modify
                  one of the headers of the INVITEs sending to the new
                  destination in this scenario,  our scripts in the
                  opensips.cfg can’t take any effect.<o:p></o:p></p>
                <p class="MsoNormal"> <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">Li <o:p></o:p></p>
                <p class="MsoNormal"><span
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                <pre>_______________________________________________<o:p></o:p></pre>
                <pre>Users mailing list<o:p></o:p></pre>
                <pre><a href="mailto:Users@lists.opensips.org" moz-do-not-send="true">Users@lists.opensips.org</a><o:p></o:p></pre>
                <pre><a href="https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.opensips.org%2Fcgi-bin%2Fmailman%2Flistinfo%2Fusers&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=2T3Ged0wn5i%2BeDSYQCd9K%2BnoY09Ow1GwhngcxySXVao%3D&reserved=0" moz-do-not-send="true">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></pre>
              </blockquote>
              <p class="MsoNormal"><span
                  style="mso-fareast-language:EN-CA"> </span><o:p></o:p></p>
            </div>
          </blockquote>
          <p class="MsoNormal"><span style="mso-fareast-language:EN-CA"><o:p> </o:p></span></p>
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