To add this calendar to your Google Calendar:
You will first need a Google Account. If you don't have one, you can get it for free at http://www.google.com.
Once you do, add "firstname.lastname@example.org" by following the instructions at this link:
To sync this calendar with your phone or other device:
You will first need to add this calendar to your Google Calendar by following the instructions above.
Once you do, follow the instructions for your particular device at this link: