<p>That is simply due to the <em>Server:</em> header from the OPTIONS reply. You can control the degree of information that is returned by your OpenSIPS in the scan replies on two levels:</p>

<ul class="task-list">
<li>No information at all (just turn off the <a href="http://www.opensips.org/Documentation/Script-CoreParameters-2-1#toc80">server_signature</a> global parameter)</li>
<li>Some information, but not any specific version (specify the content using the <a href="http://www.opensips.org/Documentation/Script-CoreParameters-2-1#toc79">server_header</a> global parameter)</li>
</ul>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br>Reply to this email directly or <a href="https://github.com/OpenSIPS/opensips/issues/417#issuecomment-76708930">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AFOcidVsSr1CmVw8VTwvlgufINpLb33Mks5nxFj6gaJpZM4Dkw7L.gif" width="1" /></p>
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