title: href=tel:555 link not working in mobile safari
body: <p>I'm designing a mobile page and am using the following (standard, I believe) code to make the phone dial a phone number. </p>
  
  <pre><code>&lt;a href="tel:555-1234567" class="call"&gt;&lt;img src="graphics/call-icon.gif" alt="call-icon" width="45" height="50"&gt;&lt;/a&gt;
  </code></pre>
  
  <p>This works fine in android but Mobile Safari I get the following error:</p>
  
  <blockquote>
    <p>Cannot Open Page<br />Safari cannot open the page because the address is
    invalid</p>
  </blockquote>