<p>Seems it crashes when receiving register request like this:</p>
<p>REGISTER sip:1.2.3.4:5060 SIP/2.0<br>
Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK724588683</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/1420#issuecomment-423491858">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AF36Zefxq4i8AsMtedBarLsyuZpP_Brpks5udMOKgaJpZM4Rx5w0">mute the thread</a>.<img src="https://github.com/notifications/beacon/AF36ZZ6DeRDW403-wyf5ElWaqugjS-TJks5udMOKgaJpZM4Rx5w0.gif" height="1" width="1" alt="" /></p>
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