title: What is the Uri for phone intent in android?
body: <p>I found in android docs that <code>Uri</code> is a</p>
  
  <blockquote>
    <p>Uniform Resource Identifier that identifies an abstract or physical
    resource, as specified by RFC 2396.</p>
  </blockquote>
  
  <p>and when I want to make a call from my android application, the intent looks like:</p>
  
  <pre><code>String toDial="tel:"+number.getText().toString();
  Intent i = new Intent(Intent.ACTION_DIAL,Uri.parse(toDial));
  </code></pre>
  
  <p>What is the physical or abstract resource in this case ?</p>