Google font isn’t working for most mobile connections where I live. I have the .woff. How do I add it to template.php?

I hooked up my phone and saw the message in the console so I know this is the reason.

At the moment, I have this in my template.php

drupal_add_css('',array('type' => 'external')); 

I now have the .woff is the theme’s folder. What’s the proper way to add it?