<p>Looks like it happens for any of the keywords in the config file. I managed to replicate it with the following keywords:</p>
<pre><code>fork
user
route
</code></pre>
<p>It also only happens if the full word is not appended or prepended with anything. e.g.</p>
<pre><code>listen=tcp:127.0.0.1:5060 advertise sip.fork.example.com:5060
listen=tcp:127.0.0.1:5060 advertise sip-fork.example.com:5060
listen=tcp:127.0.0.1:5060 advertise sip-route-test.example.com:5060
</code></pre>
<p>The following work:</p>
<pre><code>listen=tcp:127.0.0.1:5060 advertise sip.forka.example.com:5060
listen=tcp:127.0.0.1:5060 advertise sip-forks.example.com:5060
listen=tcp:127.0.0.1:5060 advertise sip-fo-rk.example.com:5060
</code></pre>

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