title: Dialing with Intent.ACTION_CALL stopps at # in phone number
body: <p>I try to dial the phone number 03012345,1234,#31#,98765
  (callthrough with a FRITZ!Box)</p>
  
  <p>"03012345" is the phone number of the FRITZ!Box, "," are dial pauses, "#31#" is a prefix to show my own phone number to the callee and "98765" is the phonenumber of the callee.</p>
  
  <pre><code>String phonenumber = "03012345,1234,#31#,98765";
  startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phonenumber)));
  </code></pre>
  
  <p>On my smartphone, everything works fine, but some user reported to me, that their smartphones stopp dialing after the first #. But when they dial from contacts, it works.</p>
  
  <p>Maybe, <code>Uri.parse</code> splits the phone number? Or is there another way to dial such a phone number?</p>