How to pass variables received in GET string through a php header redirect?

I'm receiving values in a GET string from Aweber upon user's submission of a form. I take the variables they send and submit them to a SMS gateway to notify a 3rd party of the submission by text message.

Here's my problem. I need to redirect the page that performs the outgoing SMS commands in a php header to another page that finally displays the GET variables sent from Aweber.

I can retrieve the variables and their values in the first page. How do I pass them to the second page?

Here is the code I'm using on the first page (sms.php) to collect the variables sent by Aweber:

   $fname   = $_GET['name'];
   $femail  = $_GET['email'];
   $fphone  = $_GET['telephone'];
   ....etc

   header('Location: confirmed.php');
   exit;