<p>I think the problem is that you execute a command that has a specifier:</p>
<pre><code>HDEL calls@nos.ventask.gw.gotelecom.pt 0%bW7101115050H%beGhEfDmAjC0f@LOS30.INTIMS.NOS.PT
</code></pre>
<p>Having %b expects an additional parameter and the backtrace indicates you use the function with (srv, cmd, result). There was a safety check for such cases with commit <a class="commit-link" data-hovercard-type="commit" data-hovercard-url="https://github.com/kamailio/kamailio/commit/75bbbe4059cb6fde4c74fa9157f400a24e6f7496/hovercard" href="https://github.com/kamailio/kamailio/commit/75bbbe4059cb6fde4c74fa9157f400a24e6f7496"><tt>75bbbe4</tt></a> , but not sure if it is in 4.4.x. So you have to use the redis command where you pass the argument that has any % via additional parameter.</p>
<p>I am closing this one, because it seems to be related to something fixed (as a safety check) and you must ensure that the command you pass it doesn't have %X alone, without actually parsing the expected arguments.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/kamailio/kamailio/issues/1853#issuecomment-465703425">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AF36Zd4oZaYDF3Nwni3nSdTWx_2IUrv8ks5vPZbygaJpZM4a9-5R">mute the thread</a>.<img src="https://github.com/notifications/beacon/AF36Zcj8hs2B54APm5XoH5lLPBsDPalvks5vPZbygaJpZM4a9-5R.gif" height="1" width="1" alt="" /></p>
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