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    No sure it solves you case... but you can try to strip those
    headers:<br>
    <br>
    <br>
<a class="moz-txt-link-freetext" href="https://freeswitch.org/confluence/display/FREESWITCH/Sofia+SIP+Stack#SofiaSIPStack-StripSIPHeaders">https://freeswitch.org/confluence/display/FREESWITCH/Sofia+SIP+Stack#SofiaSIPStack-StripSIPHeaders</a><br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 09/26/2016 04:05 AM, George Assaad
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAHK813JXFgZo0_f3vrcOW1swo_j_TJp_22d3QY+A_mYOr9G7dg@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hello,
        <div>The carrier is asking us to remove the following from the
          SIP invite, but we are not sure how do we generate such data
          to be able to remove it.</div>
        <div>Anybody could shed some light?</div>
        <div><br>
        </div>
        <div>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">X-Polycom-PBX: true.</span><span lang="EN-US"><span></span></span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">P-Access-Network-Info:
              IEEE-EUI-48;eui-48-addr=E4-8A-FC-8C-AB-34.</span><span
              lang="EN-US"><span></span></span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">P-Emergency-Info:
              IEEE-EUI-48;eui-48-addr=00-0B-99-74-AA-05.</span><span
              lang="EN-US"><span></span></span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">X-accountcode: domain.</span><span
              lang="EN-US"><span></span></span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">X-FS-Support: update_display,send_info.</span><span
              lang="EN-US"><span></span></span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US"><br>
            </span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">Remote-Party-ID the value “screen=yes”
              to “screen=no”</span><span lang="EN-US"><span></span></span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US"><br>
            </span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">Best Regards,</span></p>
          <p class="MsoNormal"><span
style="font-size:10pt;font-family:verdana,sans-serif;color:rgb(43,63,132)"
              lang="EN-US">G</span></p>
        </div>
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    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 

Saludos / Regards / Cumprimentos,
António silva</pre>
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