<p></p>
<blockquote>
<p>Beside from the usual hint to upgrade your kamailio to at least the latest version of the 5.3.x branch, i would have a look to other limits on the system (like limits of file descriptor and also port limits, e.g. on ulimit).</p>
</blockquote>
<p>I have adjusted the number of files opened in the system to 65535。unlit -a  open files 65535.What other problems could it be?</p>

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