Rebtel is offering new customers up to $20 through the end of the year. Customers can choose to give the money to a friend for making international calls with Rebtel, donate it to charity, or use it themselves to make low-cost calls to anywhere in the world.

The campaign begins December 17th, 2007 and runs until January 1st, 2008. Only first payments of up to $10.00 qualify for the program.

Non-paying Rebtel users -- people who have previously registered and have been using Rebtel's Smart Call service for making free global calls, or who joined Rebtel only to get a free 10 minute international call, but have never made a payment to Rebtel -- can also participate.

Rebtel is a mobile phone service that allows users to call any phone, anywhere in the world, for just pennies per minute.

Rebtel services can be used with any mobile phone without modification or software downloads. There is no charge to set up a Rebtel account. All newcomers get a free 10 minute call to test the service. Thereafter, subscribers only pay for the minutes they use. Smart Calls between the 40 countries served by Rebtel are always free and only one of the two people on a call must have a Rebtel account.