To buy a virtual number, you need to open Freeje on your smartphone and do the following:
1. Go to Numbers tab:
2. Tap Add number.
3. Choose Voice number type.
4. Select the country of your interest and the city.
5. Choose a number from the list.
6. Adjust the Pay period and hit Add number at the bottom.
7. Make a payment using a payment system that fits you the best.
And that is it. You can now use the number to make and receive calls.