How to replace the icons under the slider.
The following article shows how to replace fontello icons under the slider:
You can replace the icons in Appearance -> Theme options -> Header and Footer tab. Click on text button to see the icon classes you need to replace. The list of all available theme icon classes can be found at the following link http://lawoffice.themerex.net/wp-content/themes/lawoffice/css/fontello/demo.html
In order to add more icons to the list, feel free to check the following tutorial: