title: Twilio Say Verb during a phone call
body: <p>Based off of <a href="https://stackoverflow.com/questions/6863305/twilio-say-verb-nested-into-a-dial-verb">this question</a>, it's so close to what I want.</p>
  
  <p>We're trying to have the Say verb trigger DURING the phone call, when both parties have established connections. Not before pickup, not after hangup, not during client ringing.</p>
  
  <pre><code>&lt;?php
  header('Content-type: text/xml');
  ?&gt;
  &lt;Response&gt;
      &lt;Dial callerId="+[some number]" record="true"&gt;
          &lt;Number url="say.php"&gt;
              &lt;?php echo htmlspecialchars($_REQUEST["tocall"]); ?&gt;
          &lt;/Number&gt;
      &lt;/Dial&gt;
  &lt;/Response&gt;
  </code></pre>
  
  <p>And say.php..</p>
  
  <pre><code>&lt;?php
  header('Content-type: text/xml');
  ?&gt;
  &lt;Response&gt;
      &lt;Say voice="man" language="en"&gt;Long sentence to test quality of call over duration of [time]&lt;/Say&gt;
  &lt;/Response&gt;
  </code></pre>
  
  <p>As you can see, we're doing this to test the quality of a call over the duration of 2 hours, so ignore what it's actually "say"ing.</p>
  
  <p>What do I have to do to make this say verb trigger during a connected phone call, and not any of the pre/post stage call process?</p>