title: What is the meaning of "Presentation Allowed, Not Screened" prompt from Asterisk AMI event?
body: <p>When I listen to events from Asterisk AMI (port 5038), I receive the following event:</p>
  
  <pre><code>Events: NewCallerid
  Privilege: call,all
  Channel: DAHDI/9-1
  CallerIDNum: 12345678
  CallerIDName:
  Uniqueid: 1303743360.356
  CID-CallingPres: 0 (Presentation Allowed, Not Screened)
  </code></pre>
  
  <p>What is the meaning of</p>
  
  <pre><code>CID-CallingPres: 0 (Presentation Allowed, Not Screened)
  </code></pre>