title: Playing audio file using sipp
body: <p>So using a syntax like </p>
  
  <pre><code>../sipp -sn uac SERVER_IP -s DESTINATION_NUMBER -ap AUTH_PASSWORD -aa -m 1 -l 1 -d 10000
  </code></pre>
  
  <p>I am able to initiate a sip call.  What I want to achieve is, after the callee picks the call, play a .wav file and terminate the call after the file is finished playing.  </p>
  
  <p>I want to achieve this using the command line arguments.  Has someone done this before? </p>