<p></p>
<h3>Description</h3>

<pre><code>As you can see in the picture, via_host and received_host are different when sending registration data from outside of NAT. However, in the pcscf_unregister function, via_host and received_host are the same value.The pcontact structure in memory could not be found
</code></pre>
<h4>Log Messages</h4>

<pre><code>
</code></pre>
<h3>Possible Solutions</h3>

<pre><code>change the pcscf_unregister  function,  and add  Two parameters
</code></pre>
<h3>Additional Information</h3>
<ul>
<li><strong>Kamailio Version</strong> - output of <code>kamailio -v</code></li>
</ul>
<pre><code>version: kamailio 5.4.4 (x86_64/linux) 8d6c2b
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 8d6c2b
compiled on 14:04:08 Apr 26 2021 with gcc 4.8.5
</code></pre>
<ul>
<li><strong>Operating System</strong>:</li>
</ul>

<pre><code>Linux iZhp329ygro5y3v090vnwpZ 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue Jun 18 16:35:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
</code></pre>

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