<div dir="ltr">The to_tag is going to appear for any message beyond the initial request. Short answer, no, you can't hide the to_tag. It's very important to the SIP message.<div><br></div><div>Still, if you want to change the to_tag to something different, you could use B2BUA-based topology hiding[1]. You will need a separate OpenSIPS instance for this.</div><div><br></div><div>Dialog-based topology hiding[2] may obfuscate the to_tag as well. From the doc page it doesn't appear so. I'll include it for completeness.</div><div><br></div><div>Why you want to hide the to_tag?</div><div><br></div><div><br></div><div> [1] <a href="http://www.opensips.org/Documentation/Tutorials-B2BUA#toc12">http://www.opensips.org/Documentation/Tutorials-B2BUA#toc12</a></div><div> [2] <a href="http://www.opensips.org/html/docs/modules/2.1.x/topology_hiding.html#id293540">http://www.opensips.org/html/docs/modules/2.1.x/topology_hiding.html#id293540</a></div><div><br></div><div><br></div><div>- Jeff</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Nov 30, 2015 at 4:25 AM, Søren Andersen <span dir="ltr"><<a href="mailto:SOAN@stofa.dk" target="_blank">SOAN@stofa.dk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hello,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span lang="EN-US">Is it posibleto hide the to_tag from my upstream provider? – fx. If I rewrite the call to another user my upstream will only see one to_tag in the 1xx response?<span class="HOEnZb"><font color="#888888"><u></u><u></u></font></span></span></p><span class="HOEnZb"><font color="#888888">
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal">/Søren<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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