<p>A similar issue was fixed a while ago:<br>
commit <a href="https://github.com/OpenSIPS/opensips/commit/f9a8d985829ed1cce3a2f0985a8c72368d0b3325" class="commit-link"><tt>f9a8d98</tt></a><br>
Author: Ovidiu Sas <a href="mailto:osas@voipembedded.com">osas@voipembedded.com</a><br>
Date:   Fri Nov 22 12:34:03 2013 -0500</p>

<pre><code>uac_registrant: re-register with expires value imposed by the registrar
</code></pre>

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