From the Vonage website....
Now through Christmas Eve, your kids can call Santa Claus and tell him what they want for Christmas! It's so easy. All you have to do is enter your details and once you hit Submit, your phone will ring and you will be connected to Santa's workshop. Your kids will love hearing Santa's holiday greeting and can leave a message telling him what they want for Christmas this year.
The message will be sent to the email address that you provided. This way, you will know exactly what your kids wished for this year. You can also forward the audio attachment to other family members and friends, or even save it as a keepsake.
Don't forget to check back on December 24th after 5:00PM EST. Enter your details again and you will be able to track Santa's whereabouts as he delivers toys around the world!