<p>Similar error exist if used <code>LibreSSL</code> for TLS connection on kamailio side.<br>
What is TSL libraries used on your dist?<br>
Need to execute <code>cat /etc/os-release</code></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/2028?email_source=notifications&email_token=ABO7UZIN6VV3SCRQ2ZWLLNDQDKUVRA5CNFSM4IJ5YDKKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3YBS2I#issuecomment-519051625">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/ABO7UZIMT72FGGRQSIDIPHDQDKUVRANCNFSM4IJ5YDKA">mute the thread</a>.<img src="https://github.com/notifications/beacon/ABO7UZLGEPE6IFICXPISRZ3QDKUVRA5CNFSM4IJ5YDKKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3YBS2I.gif" height="1" width="1" alt="" /></p>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/kamailio/kamailio/issues/2028?email_source=notifications\u0026email_token=ABO7UZIN6VV3SCRQ2ZWLLNDQDKUVRA5CNFSM4IJ5YDKKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3YBS2I#issuecomment-519051625",
"url": "https://github.com/kamailio/kamailio/issues/2028?email_source=notifications\u0026email_token=ABO7UZIN6VV3SCRQ2ZWLLNDQDKUVRA5CNFSM4IJ5YDKKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD3YBS2I#issuecomment-519051625",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>