title: Getting net::ERR_UNKNOWN_URL_SCHEME while calling telephone number from HTML page in Android
body: <p>I am getting "net::ERR_UNKNOWN_URL_SCHEME" while calling a telephone number option from an HTML page in Android. Do I need to add any permission(s) in the manifest to get this working? I haven't added anything in the manifest so far.  Here's the HTML Code:</p>
  
  <p><code>&lt;a href="tel:+1800229933"&gt;Call us free!&lt;/a&gt;</code></p>