What is Challenger callback One4000®?
It's an application that's FREE to download to your computer, mobile or BlackBerry. It's easy-to-use for FREE internet calls, and great rates to all other phones.
How do I get it?
Just go to www.one4000.com and sign up!
(You will leave this site when you do).
How much does it cost?
It's FREE to sign up for an account. If you want to make calls to landlines and mobiles, you pay through topping up your account.
For rates and more information, visit www.one4000.com.
