title: Error raised during calls in asterisk server
body: <p>Today my asterisk could not receive calls for a while. when I checked the asterisk logs, the error below was raising during this period.</p>
  
  <pre><code>Purely numeric hostname (1002), and not a peer--rejecting!
  </code></pre>
  
  <p>After I restarted the asterisk the problem solved. <strong>What is the problem?</strong></p>