<div dir="ltr">I believe you are looking for STIR / SHAKEN.<div><a href="https://www.sipforum.org/download/an-introduction-and-overview-of-the-stir-shaken-framework/">https://www.sipforum.org/download/an-introduction-and-overview-of-the-stir-shaken-framework/</a> </div><div><a href="https://datatracker.ietf.org/wg/stir/documents/">https://datatracker.ietf.org/wg/stir/documents/</a> </div><div> <br></div><div>Thanks</div><div>Ramesh <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Apr 17, 2019 at 4:15 PM Nathan Neulinger <<a href="mailto:nneul@mst.edu">nneul@mst.edu</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 bgcolor="#FFFFFF">
<p>All of the articles I've seen are just the dumbed down public
info with an occasional technical buzzword thrown in.</p>
<p><br>
</p>
<p><a class="gmail-m_-2171401471829876128moz-txt-link-freetext" href="https://tech.slashdot.org/story/19/04/17/1659243/t-mobile-comcast-turn-on-call-verification-between-networks-in-latest-robocall-fight" target="_blank">https://tech.slashdot.org/story/19/04/17/1659243/t-mobile-comcast-turn-on-call-verification-between-networks-in-latest-robocall-fight</a><br>
</p>
<pre class="gmail-m_-2171401471829876128moz-signature" cols="120">-- Nathan
------------------------------------------------------------
Nathan Neulinger <a class="gmail-m_-2171401471829876128moz-txt-link-abbreviated" href="mailto:nneul@mst.edu" target="_blank">nneul@mst.edu</a>
Missouri S&T Information Technology (573) 341-6679
System Administrator - Architect (573) 612-1412
System and Desktop Infrastructure Team Manager</pre>
</div>
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